<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e6a3b-e81a-7215-92c6-4adf741aaba6,g:102931b4-92b1-4083-9409-dfe8ca926b4c-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="andg-20260630.xsd#UNAUDITEDCONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e6a3b-e8e1-7f59-a23d-0f88212a7885" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019e6a3b-e8e1-7f59-a23d-0f88212a7885" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019e6a3b-e8e1-7d94-b7cc-cb81bf829c62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019e6a3b-e8e1-7d94-b7cc-cb81bf829c62" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e6a3b-e8e1-7f4d-8b35-92ca473a10fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019e6a3b-e8e1-7f4d-8b35-92ca473a10fa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_019e6a3b-e8e1-7522-abb3-eb31d06615d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_DividendsPayableCurrent_019e6a3b-e8e1-7522-abb3-eb31d06615d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e6a3b-e8e1-7403-b253-cf4b990e8ab2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019e6a3b-e8e1-7403-b253-cf4b990e8ab2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableCurrent_019e6a3b-e8e1-7d14-93ec-ea752bac2e08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesPayableCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_NotesPayableCurrent_019e6a3b-e8e1-7d14-93ec-ea752bac2e08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e8e1-7403-9526-813f59ad8a11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-701e-9d88-c8a6d3dc5136" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e8e1-7403-9526-813f59ad8a11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-7d27-b14e-fa98ec8ae7d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019e6a3b-e8e1-7073-9110-08da14d8af22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-7d27-b14e-fa98ec8ae7d8" xlink:to="loc_us-gaap_PreferredStockValue_019e6a3b-e8e1-7073-9110-08da14d8af22" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019e6a3b-e8e1-78cb-97e8-e00347980dd4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-7d27-b14e-fa98ec8ae7d8" xlink:to="loc_us-gaap_CommonStockValue_019e6a3b-e8e1-78cb-97e8-e00347980dd4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019e6a3b-e8e1-7de5-b15e-2a8918bb9cda" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-7d27-b14e-fa98ec8ae7d8" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019e6a3b-e8e1-7de5-b15e-2a8918bb9cda" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e6a3b-e8e1-70f9-b18b-308ad26fb036" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-7d27-b14e-fa98ec8ae7d8" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019e6a3b-e8e1-70f9-b18b-308ad26fb036" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e6a3b-e8e1-7dcf-862a-5a15408d7365" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019e6a3b-e8e1-7dcf-862a-5a15408d7365" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019e6a3b-e8e1-7da6-897a-8e3a20d77a27" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019e6a3b-e8e1-7da6-897a-8e3a20d77a27" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019e6a3b-e8e1-73e2-9779-eaa940009d80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesAndLoansReceivableNetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetCurrent_019e6a3b-e8e1-73e2-9779-eaa940009d80" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_019e6a3b-e8e1-78c0-9fe7-8e65685b6368" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLossCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLossCurrent_019e6a3b-e8e1-78c0-9fe7-8e65685b6368" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e8e1-7ce2-88a1-db90fcd601f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-73fa-a66d-faa19d21507e" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e8e1-7ce2-88a1-db90fcd601f8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-76b4-8ebc-8acbed2ba9d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_AssetsCurrent_019e6a3b-e8e1-76b4-8ebc-8acbed2ba9d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019e6a3b-e8e1-7944-ba1b-80d09a61d696" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesAndLoansReceivableNetNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_NotesAndLoansReceivableNetNoncurrent_019e6a3b-e8e1-7944-ba1b-80d09a61d696" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e6a3b-e8e1-7aa5-b2f4-cae0d0295eef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e6a3b-e8e1-7aa5-b2f4-cae0d0295eef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e6a3b-e8e1-7516-a5f7-f2fd7676e9df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019e6a3b-e8e1-7516-a5f7-f2fd7676e9df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e6a3b-e8e1-70ec-b02b-855ce7e03e51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019e6a3b-e8e1-70ec-b02b-855ce7e03e51" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019e6a3b-e8e1-75e5-ae5a-0f9d90e1a1e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_Goodwill_019e6a3b-e8e1-75e5-ae5a-0f9d90e1a1e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019e6a3b-e8e1-79a3-9f52-909392068743" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019e6a3b-e8e1-73f1-b952-6114c9ece11b" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019e6a3b-e8e1-79a3-9f52-909392068743" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e6a3b-e8e1-7947-874f-2dc275646e07" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-7f0c-bd16-08932a5649ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e6a3b-e8e1-7947-874f-2dc275646e07" xlink:to="loc_us-gaap_LiabilitiesCurrent_019e6a3b-e8e1-7f0c-bd16-08932a5649ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e6a3b-e8e1-77a1-a6b0-bc1bc27a2730" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e6a3b-e8e1-7947-874f-2dc275646e07" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019e6a3b-e8e1-77a1-a6b0-bc1bc27a2730" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermNotesPayable_019e6a3b-e8e1-75c8-aa3b-f2198f87b263" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermNotesPayable"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e6a3b-e8e1-7947-874f-2dc275646e07" xlink:to="loc_us-gaap_LongTermNotesPayable_019e6a3b-e8e1-75c8-aa3b-f2198f87b263" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019e6a3b-e8e1-72d8-b9bc-fe0dd75a7306" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019e6a3b-e8e1-7947-874f-2dc275646e07" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019e6a3b-e8e1-72d8-b9bc-fe0dd75a7306" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e6a3b-e8e1-7f99-9ba2-ff8e697ee7c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019e6a3b-e8e1-7877-bc2f-a5701b656c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e6a3b-e8e1-7f99-9ba2-ff8e697ee7c1" xlink:to="loc_us-gaap_Liabilities_019e6a3b-e8e1-7877-bc2f-a5701b656c3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019e6a3b-e8e1-73d1-9f41-04ed7fa7204e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e6a3b-e8e1-7f99-9ba2-ff8e697ee7c1" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019e6a3b-e8e1-73d1-9f41-04ed7fa7204e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019e6a3b-e8e1-7231-a6b2-1ac40190e1ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e6a3b-e8e1-7f99-9ba2-ff8e697ee7c1" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019e6a3b-e8e1-7231-a6b2-1ac40190e1ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e6a3b-e8e1-7e6d-b29b-09457bcb37aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019e6a3b-e8e1-7f99-9ba2-ff8e697ee7c1" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e6a3b-e8e1-7e6d-b29b-09457bcb37aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e6a3b-e8e1-7b79-81d9-269a6d6364da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-79c6-a559-b5d51a5599ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e6a3b-e8e1-7b79-81d9-269a6d6364da" xlink:to="loc_us-gaap_StockholdersEquity_019e6a3b-e8e1-79c6-a559-b5d51a5599ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019e6a3b-e8e1-7443-8dbd-cbaa270ddad6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019e6a3b-e8e1-7b79-81d9-269a6d6364da" xlink:to="loc_us-gaap_MinorityInterest_019e6a3b-e8e1-7443-8dbd-cbaa270ddad6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="andg-20260630.xsd#UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e6a3b-e8e1-7514-9f74-f6e44b7577c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e6a3b-e8e1-7cc0-85b5-4df42818ded5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e6a3b-e8e1-7514-9f74-f6e44b7577c5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019e6a3b-e8e1-7cc0-85b5-4df42818ded5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7562-9bb4-dfc25bd382bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_019e6a3b-e8e1-7514-9f74-f6e44b7577c5" xlink:to="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7562-9bb4-dfc25bd382bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7e40-8242-c9efc148c5b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_019e6a3b-e8e1-79b1-9559-704990c118cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7e40-8242-c9efc148c5b4" xlink:to="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_019e6a3b-e8e1-79b1-9559-704990c118cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e6a3b-e8e1-7f68-a8a8-fc40a93c2adb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7e40-8242-c9efc148c5b4" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019e6a3b-e8e1-7f68-a8a8-fc40a93c2adb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_019e6a3b-e8e1-70fb-bb90-b5ccde398369" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_019e6a3b-e8e1-7e40-8242-c9efc148c5b4" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_019e6a3b-e8e1-70fb-bb90-b5ccde398369" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-73ef-9b4e-21e3aaeb76d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019e6a3b-e8e1-7f43-905a-b3704972c484" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-73ef-9b4e-21e3aaeb76d2" xlink:to="loc_us-gaap_OperatingIncomeLoss_019e6a3b-e8e1-7f43-905a-b3704972c484" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019e6a3b-e8e1-743d-b00c-8de7beb41094" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-73ef-9b4e-21e3aaeb76d2" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019e6a3b-e8e1-743d-b00c-8de7beb41094" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019e6a3b-e8e1-746d-9a36-b0310647da45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-73ef-9b4e-21e3aaeb76d2" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019e6a3b-e8e1-746d-9a36-b0310647da45" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019e6a3b-e8e1-7290-909e-688bc7385113" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-73ef-9b4e-21e3aaeb76d2" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019e6a3b-e8e1-7290-909e-688bc7385113" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-7056-b25d-69fc3825f415" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-79bd-b793-e6ee0d269a5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-7056-b25d-69fc3825f415" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019e6a3b-e8e1-79bd-b793-e6ee0d269a5d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019e6a3b-e8e1-769f-a900-ff87e3e56b72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-7056-b25d-69fc3825f415" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019e6a3b-e8e1-769f-a900-ff87e3e56b72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019e6a3b-e8e1-7a34-ab8e-6139b96e1e6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-706c-a2cc-a0633e96461f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e6a3b-e8e1-7a34-ab8e-6139b96e1e6a" xlink:to="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-706c-a2cc-a0633e96461f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e6a3b-e8e1-7b5d-8b80-d918493f1ba5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_019e6a3b-e8e1-7a34-ab8e-6139b96e1e6a" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e6a3b-e8e1-7b5d-8b80-d918493f1ba5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="andg-20260630.xsd#UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://andersen.com/role/UNAUDITEDCONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_019e6a3b-e8e1-7473-bbd8-cb11a0d1e920" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_019e6a3b-e8e1-7473-bbd8-cb11a0d1e920" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OriginationOfNotesReceivableFromRelatedParties_019e6a3b-e8e1-7010-aa7f-73ca0e8b2606" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OriginationOfNotesReceivableFromRelatedParties"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_OriginationOfNotesReceivableFromRelatedParties_019e6a3b-e8e1-7010-aa7f-73ca0e8b2606" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentOfNotesReceivableFromRelatedParties_019e6a3b-e8e1-7eab-8e44-f7bd1498ba83" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentOfNotesReceivableFromRelatedParties"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_RepaymentOfNotesReceivableFromRelatedParties_019e6a3b-e8e1-7eab-8e44-f7bd1498ba83" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e6a3b-e8e1-7c12-8d57-1dbf16ccea52" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_019e6a3b-e8e1-7c12-8d57-1dbf16ccea52" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForSoftware_019e6a3b-e8e1-7ec7-884b-500a82259d75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForSoftware"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_PaymentsForSoftware_019e6a3b-e8e1-7ec7-884b-500a82259d75" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAcquiredInExcessOfPaymentsToAcquireBusiness_019fac0d-8ee9-78bf-bd78-235f586fe410" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAcquiredInExcessOfPaymentsToAcquireBusiness"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-749a-ac77-2775240ede2f" xlink:to="loc_us-gaap_CashAcquiredInExcessOfPaymentsToAcquireBusiness_019fac0d-8ee9-78bf-bd78-235f586fe410" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-7900-9329-2e53efa2550c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_ProfitLoss_019e6a3b-e8e1-7900-9329-2e53efa2550c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019e6a3b-e8e1-7483-be5a-711d2dc0ea47" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_ShareBasedCompensation_019e6a3b-e8e1-7483-be5a-711d2dc0ea47" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019e6a3b-e8e1-73fe-a3d7-40adee3c223a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019e6a3b-e8e1-73fe-a3d7-40adee3c223a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_NonCashOperatingLeaseExpense_019e6a3b-e8e1-7f01-b215-61dc42795ceb" xlink:href="andg-20260630.xsd#andg_NonCashOperatingLeaseExpense"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_andg_NonCashOperatingLeaseExpense_019e6a3b-e8e1-7f01-b215-61dc42795ceb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_019e6a3b-e8e1-7bf4-9ec7-fefeecf55d31" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_019e6a3b-e8e1-7bf4-9ec7-fefeecf55d31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_019e6a3b-e8e1-7810-ba99-5f5fc6def711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_019e6a3b-e8e1-7810-ba99-5f5fc6def711" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e6a3b-e8e1-7b0c-aa57-58bc19739b05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_019e6a3b-e8e1-7b0c-aa57-58bc19739b05" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLossesExpensed_019e6a3b-e8e1-728d-b7ea-44d87ac89e85" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLossesExpensed"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_ProvisionForLoanLossesExpensed_019e6a3b-e8e1-728d-b7ea-44d87ac89e85" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019e6a3b-e8e1-7b68-8e87-456f9002c881" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019e6a3b-e8e1-7b68-8e87-456f9002c881" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e6a3b-e8e1-7d16-9704-81e738cef678" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_019e6a3b-e8e1-7d16-9704-81e738cef678" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e6a3b-e8e1-75c9-a1f8-4b9d3850334f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_019e6a3b-e8e1-75c9-a1f8-4b9d3850334f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019e6a3b-e8e1-757e-ac13-7d2818279213" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_019e6a3b-e8e1-757e-ac13-7d2818279213" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e6a3b-e8e1-768c-a2e9-d6dd6cb47353" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_019e6a3b-e8e1-768c-a2e9-d6dd6cb47353" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_019e6a3b-e8e1-70ad-af00-54237e6be75f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_019e6a3b-e8e1-70ad-af00-54237e6be75f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e6a3b-e8e1-7459-81a9-347f31fb8b1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_019e6a3b-e8e1-7459-81a9-347f31fb8b1f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_019e6a3b-e8e1-7e04-87da-1559545e50a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_019e6a3b-e8e1-7e04-87da-1559545e50a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_019e6a3b-e8e1-7bb0-aa1e-9b790998e84c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_019e6a3b-e8e1-7bb0-aa1e-9b790998e84c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e6a3b-e8e1-7e43-a22d-d2589e139952" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_019e6a3b-e8e1-7e43-a22d-d2589e139952" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_019eb25e-a266-7775-a032-07abdf48c127" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossRelatedToLitigationSettlement"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_019eb25e-a266-7775-a032-07abdf48c127" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount_019fac0b-26dd-79b0-b5c5-12582ed1c6c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount"/>
    <link:calculationArc order="20" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-78f6-ac76-047af5c1f770" xlink:to="loc_us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount_019fac0b-26dd-79b0-b5c5-12582ed1c6c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e6a3b-e8e1-75c6-bf9a-f277b29374c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-779b-94ed-3c03438f1815" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e6a3b-e8e1-75c6-bf9a-f277b29374c6" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019e6a3b-e8e1-779b-94ed-3c03438f1815" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-73af-a52c-62d17bc1724b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e6a3b-e8e1-75c6-bf9a-f277b29374c6" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019e6a3b-e8e1-73af-a52c-62d17bc1724b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7bb6-8f52-085040659ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e6a3b-e8e1-75c6-bf9a-f277b29374c6" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7bb6-8f52-085040659ca7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019fc821-8b1b-784a-92ba-794ef6e79cf5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019e6a3b-e8e1-75c6-bf9a-f277b29374c6" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019fc821-8b1b-784a-92ba-794ef6e79cf5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_019e6a3b-e8e1-766f-beb1-cc8ff21bf0db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_019e6a3b-e8e1-766f-beb1-cc8ff21bf0db" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_019e6a3b-e8e1-74e8-b1d1-6dc8e600614d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_019e6a3b-e8e1-74e8-b1d1-6dc8e600614d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfRelatedPartyDebt_019e6a3b-e8e1-764d-a960-6ae323fc0ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfRelatedPartyDebt"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:to="loc_us-gaap_RepaymentsOfRelatedPartyDebt_019e6a3b-e8e1-764d-a960-6ae323fc0ba8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDistributionsToAffiliates_019e6a3b-e8e1-7a47-8273-14bd699dc752" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDistributionsToAffiliates"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:to="loc_us-gaap_PaymentsOfDistributionsToAffiliates_019e6a3b-e8e1-7a47-8273-14bd699dc752" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_019eb25d-cf87-7075-b921-89a5fff8ac5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019e6a3b-e8e1-7920-a473-a3bff69b106a" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_019eb25d-cf87-7075-b921-89a5fff8ac5c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/AccountsReceivableNetScheduleofAccountsReceivableNetDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#AccountsReceivableNetScheduleofAccountsReceivableNetDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/AccountsReceivableNetScheduleofAccountsReceivableNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGross_019e6a3b-e8e1-7ea5-a769-70133dbc7188" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BilledContractReceivables_019e6a3b-e8e1-792d-a26c-433256fbda07" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BilledContractReceivables"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableGross_019e6a3b-e8e1-7ea5-a769-70133dbc7188" xlink:to="loc_us-gaap_BilledContractReceivables_019e6a3b-e8e1-792d-a26c-433256fbda07" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledContractsReceivable_019e6a3b-e8e1-719d-9aaa-efcae383829c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UnbilledContractsReceivable"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableGross_019e6a3b-e8e1-7ea5-a769-70133dbc7188" xlink:to="loc_us-gaap_UnbilledContractsReceivable_019e6a3b-e8e1-719d-9aaa-efcae383829c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet_019e6a3b-e8e1-7e9a-a93d-6e8894251aea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGross_019e6a3b-e8e1-7ff3-9289-f261b7d013fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNet_019e6a3b-e8e1-7e9a-a93d-6e8894251aea" xlink:to="loc_us-gaap_AccountsReceivableGross_019e6a3b-e8e1-7ff3-9289-f261b7d013fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019e6a3b-e8e1-783c-a5eb-4dec8d1c4371" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNet_019e6a3b-e8e1-7e9a-a93d-6e8894251aea" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019e6a3b-e8e1-783c-a5eb-4dec8d1c4371" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019e6a3b-e8e1-7354-9064-7d4d96fa60db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e6a3b-e8e1-7301-ac8c-6acb04fb1233" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019e6a3b-e8e1-7354-9064-7d4d96fa60db" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e6a3b-e8e1-7301-ac8c-6acb04fb1233" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-72c3-b72e-41fad289d48c" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019e6a3b-e8e1-7354-9064-7d4d96fa60db" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-72c3-b72e-41fad289d48c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-77fa-9cd2-e15bd54d39b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7580-8d2b-d28a3b216a2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-77fa-9cd2-e15bd54d39b6" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7580-8d2b-d28a3b216a2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-724d-b578-fd7c94e452bc" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-77fa-9cd2-e15bd54d39b6" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-724d-b578-fd7c94e452bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019e6a3b-e8e1-79ca-896a-10ed443d128c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-7b6f-8315-4e3e29bc2da9" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019e6a3b-e8e1-79ca-896a-10ed443d128c" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-7b6f-8315-4e3e29bc2da9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-714d-8881-76fd2fae2c04" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019e6a3b-e8e1-79ca-896a-10ed443d128c" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-714d-8881-76fd2fae2c04" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7da2-8a8b-e01d6d0dc672" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-74fe-bfcf-c96e2fea14c0" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7da2-8a8b-e01d6d0dc672" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-74fe-bfcf-c96e2fea14c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-74b2-8874-734ff399ca48" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7da2-8a8b-e01d6d0dc672" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e8e1-74b2-8874-734ff399ca48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e6a3b-e8e1-766e-9aa2-197ccfffa418" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount_019e6a3b-e8e1-7da2-8a8b-e01d6d0dc672" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue_019e6a3b-e8e1-766e-9aa2-197ccfffa418" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019e6a3b-e8e1-798c-8ce6-7321de331aa3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e9a4-75b9-b7b7-8e9e4514a7dd" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019e6a3b-e8e1-798c-8ce6-7321de331aa3" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne_019e6a3b-e9a4-75b9-b7b7-8e9e4514a7dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e9a4-70eb-adf6-9c562ab391bd" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019e6a3b-e8e1-798c-8ce6-7321de331aa3" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e9a4-70eb-adf6-9c562ab391bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7ef3-9cee-e3faf3540b65" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-734c-8765-be3b632e2ff2" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7ef3-9cee-e3faf3540b65" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedGainAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-734c-8765-be3b632e2ff2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-791c-addf-870b990ccbcb" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7ef3-9cee-e3faf3540b65" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityUnrealizedLossAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-791c-addf-870b990ccbcb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7e05-abba-c9d410398c47" xlink:href="andg-20260630.xsd#andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_andg_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7ef3-9cee-e3faf3540b65" xlink:to="loc_andg_DebtSecuritiesHeldToMaturityFairValueMaturityAllocatedAndSingleMaturityDateBetweenYearOneAndTwo_019e6a3b-e8e1-7e05-abba-c9d410398c47" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails_1" xlink:type="simple" xlink:href="andg-20260630.xsd#FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails_1"/>
  <link:calculationLink xlink:role="http://andersen.com/role/FinancialInstrumentsandFairValueMeasurementsScheduleofInvestmentsinHeldtoMaturityDebtSecuritiesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-7405-b3ea-47096609bfcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019e6a3b-e8e1-7ce9-a131-3ca545629074" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-7405-b3ea-47096609bfcf" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_019e6a3b-e8e1-7ce9-a131-3ca545629074" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019e6a3b-e8e1-7d92-a721-e2677fd247cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-7405-b3ea-47096609bfcf" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_019e6a3b-e8e1-7d92-a721-e2677fd247cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019e6a3b-e8e1-71f8-9ace-b0a9b7cb6f5b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_HeldToMaturitySecuritiesFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss_019e6a3b-e8e1-7405-b3ea-47096609bfcf" xlink:to="loc_us-gaap_HeldToMaturitySecuritiesFairValue_019e6a3b-e8e1-71f8-9ace-b0a9b7cb6f5b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#PropertyandEquipmentNetScheduleofPropertyandEquipmentDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/PropertyandEquipmentNetScheduleofPropertyandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7644-93ff-19f02aee22a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7e50-a9db-91b35bcb6e3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7644-93ff-19f02aee22a3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7e50-a9db-91b35bcb6e3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7163-9b33-0ada11857dee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7644-93ff-19f02aee22a3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019e6a3b-e9a4-7163-9b33-0ada11857dee" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsNetDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsNetDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-7b99-a987-b0de701ae657" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e6a3b-e9a4-7856-9a2c-86ef7412493b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-7b99-a987-b0de701ae657" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019e6a3b-e9a4-7856-9a2c-86ef7412493b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e6a3b-e9a4-7daf-9915-68ff30d2ce48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-7b99-a987-b0de701ae657" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019e6a3b-e9a4-7daf-9915-68ff30d2ce48" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/GoodwillandIntangibleAssetsNetScheduleofEstimatedFutureAmortizationExpenseDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#GoodwillandIntangibleAssetsNetScheduleofEstimatedFutureAmortizationExpenseDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/GoodwillandIntangibleAssetsNetScheduleofEstimatedFutureAmortizationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019e6a3b-e9a4-7167-b49d-a8c0ea7ddf2b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_019e6a3b-e9a4-7167-b49d-a8c0ea7ddf2b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019e6a3b-e9a4-754f-a16a-6491b2d6b033" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_019e6a3b-e9a4-754f-a16a-6491b2d6b033" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019fac7e-334f-7b6a-ba15-979b57a02cf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_019fac7e-334f-7b6a-ba15-979b57a02cf8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019fac7e-334f-707a-95a1-13874708a21f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_019fac7e-334f-707a-95a1-13874708a21f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019fac7e-334f-7ef6-9021-c9e640b4d4f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_019fac7e-334f-7ef6-9021-c9e640b4d4f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseAfterYearFour_019fac7f-a75b-743c-9a91-83337282fc26" xlink:href="andg-20260630.xsd#andg_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019e6a3b-e9a4-773c-93a4-8469cabbd33e" xlink:to="loc_andg_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseAfterYearFour_019fac7f-a75b-743c-9a91-83337282fc26" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/OtherBalanceSheetComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#OtherBalanceSheetComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/OtherBalanceSheetComponentsScheduleofPrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e9a4-75a8-9b00-d2c3f4e6fff7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_019e6a3b-e9a4-7d13-98fb-0d1a90f24194" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e9a4-75a8-9b00-d2c3f4e6fff7" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_019e6a3b-e9a4-7d13-98fb-0d1a90f24194" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_019e6a3b-e9a4-7677-b054-568c49786cb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e9a4-75a8-9b00-d2c3f4e6fff7" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_019e6a3b-e9a4-7677-b054-568c49786cb4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019e6a3b-e9a4-718a-8b2b-a2882fe89a99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019e6a3b-e9a4-75a8-9b00-d2c3f4e6fff7" xlink:to="loc_us-gaap_OtherAssetsCurrent_019e6a3b-e9a4-718a-8b2b-a2882fe89a99" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/OtherBalanceSheetComponentsScheduleofOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#OtherBalanceSheetComponentsScheduleofOtherCurrentLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/OtherBalanceSheetComponentsScheduleofOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrent_019e6a3b-e9a4-7671-a0ad-43109031c2bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCompensationLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrent_019e6a3b-e9a4-7671-a0ad-43109031c2bd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationSeparatelyRecognizedTransactionsDeferredConsiderationCurrent_019e6a3b-e9a4-7cef-87a7-bcee8caf7de6" xlink:href="andg-20260630.xsd#andg_BusinessCombinationSeparatelyRecognizedTransactionsDeferredConsiderationCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:to="loc_andg_BusinessCombinationSeparatelyRecognizedTransactionsDeferredConsiderationCurrent_019e6a3b-e9a4-7cef-87a7-bcee8caf7de6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_019e6a3b-e9a4-7238-9a74-21c51c3371ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_019e6a3b-e9a4-7238-9a74-21c51c3371ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_019e6a3b-e9a4-7084-b664-492452e657c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_019e6a3b-e9a4-7084-b664-492452e657c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSundryLiabilitiesCurrent_019e6a3b-e9a4-7d96-a07c-30f9a8af5af3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherSundryLiabilitiesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_019e6a3b-e9a4-7467-8b2c-8bcab15cb672" xlink:to="loc_us-gaap_OtherSundryLiabilitiesCurrent_019e6a3b-e9a4-7d96-a07c-30f9a8af5af3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/LongTermDebtScheduleofFutureMaturitiesofLongTermDebtDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#LongTermDebtScheduleofFutureMaturitiesofLongTermDebtDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/LongTermDebtScheduleofFutureMaturitiesofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e6a3b-e9a4-7649-bf9c-7260d4742d69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019e6a3b-e9a4-7649-bf9c-7260d4742d69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e6a3b-e9a4-7217-9b28-0bc3d18dd918" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019e6a3b-e9a4-7217-9b28-0bc3d18dd918" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e6a3b-e9a4-7993-aad1-b968dde41ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019e6a3b-e9a4-7993-aad1-b968dde41ac7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e6a3b-e9a4-7ca1-bf73-3e0b73b9cb83" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019e6a3b-e9a4-7ca1-bf73-3e0b73b9cb83" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e6a3b-e9a4-7891-921f-705fb20b0a53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019e6a3b-e9a4-7891-921f-705fb20b0a53" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_LongTermDebtMaturityAfterYearFour_019e6a3b-e9a4-7b6d-8dde-130c5777164a" xlink:href="andg-20260630.xsd#andg_LongTermDebtMaturityAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019e6a3b-e9a4-7d78-9246-950c934c1a4c" xlink:to="loc_andg_LongTermDebtMaturityAfterYearFour_019e6a3b-e9a4-7b6d-8dde-130c5777164a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/EarningsPerShareScheduleofBasicandDilutedEarningsPerShareDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#EarningsPerShareScheduleofBasicandDilutedEarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/EarningsPerShareScheduleofBasicandDilutedEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e6a3b-e9a4-7fa9-97c0-37458c951a92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019e6a3b-e9a4-7c74-8e34-dc5882ab80a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e6a3b-e9a4-7fa9-97c0-37458c951a92" xlink:to="loc_us-gaap_ProfitLoss_019e6a3b-e9a4-7c74-8e34-dc5882ab80a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e6a3b-e9a4-7402-b290-7f3920250c1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019e6a3b-e9a4-7fa9-97c0-37458c951a92" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019e6a3b-e9a4-7402-b290-7f3920250c1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e6a3b-e9a4-71f5-a8c7-b4d7c99b5534" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e6a3b-e9a4-744d-8c64-0ea7890078e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e6a3b-e9a4-71f5-a8c7-b4d7c99b5534" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019e6a3b-e9a4-744d-8c64-0ea7890078e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e6a3b-e9a4-7795-8132-db22717a6895" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e6a3b-e9a4-71f5-a8c7-b4d7c99b5534" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019e6a3b-e9a4-7795-8132-db22717a6895" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements_019e6a3b-e9a4-736b-9703-1cbeebda54fb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019e6a3b-e9a4-71f5-a8c7-b4d7c99b5534" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements_019e6a3b-e9a4-736b-9703-1cbeebda54fb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/TransactionswithRelatedPartiesScheduleofRelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#TransactionswithRelatedPartiesScheduleofRelatedPartyTransactionsDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/TransactionswithRelatedPartiesScheduleofRelatedPartyTransactionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableNet_019e6a3b-e9a4-7069-bdc5-d377675331d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesReceivableNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesReceivableGross_019e6a3b-e9a4-78bf-b96c-7e2bfa8608fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesReceivableGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e6a3b-e9a4-7069-bdc5-d377675331d1" xlink:to="loc_us-gaap_NotesReceivableGross_019e6a3b-e9a4-78bf-b96c-7e2bfa8608fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019e6a3b-e9a4-79c2-820a-23ebbbe78b4e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NotesReceivableNet_019e6a3b-e9a4-7069-bdc5-d377675331d1" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_019e6a3b-e9a4-79c2-820a-23ebbbe78b4e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/CommitmentsandContingenciesScheduleofMinimumPaymentsDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#CommitmentsandContingenciesScheduleofMinimumPaymentsDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/CommitmentsandContingenciesScheduleofMinimumPaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_019e6a3b-e9a4-75b0-97ec-e6552aa5c1a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_019e6a3b-e9a4-75b0-97ec-e6552aa5c1a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_019e6a3b-e9a4-7676-b3e2-f0806c1588dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_019e6a3b-e9a4-7676-b3e2-f0806c1588dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_019e6a3b-e9a4-7648-92aa-38e2df0f86f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_019e6a3b-e9a4-7648-92aa-38e2df0f86f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_019e6a3b-e9a4-7743-85c5-a38eae828d79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_019e6a3b-e9a4-7743-85c5-a38eae828d79" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_019e6a3b-e9a4-77d9-9945-88fd8a074410" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationDueInFourthYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_us-gaap_PurchaseObligationDueInFourthYear_019e6a3b-e9a4-77d9-9945-88fd8a074410" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_PurchaseObligationToBePaidAfterYearFour_019e6a3b-e9a4-7936-83bb-c8165080c99b" xlink:href="andg-20260630.xsd#andg_PurchaseObligationToBePaidAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_PurchaseObligation_019e6a3b-e9a4-7fe1-b278-1e2252d6a500" xlink:to="loc_andg_PurchaseObligationToBePaidAfterYearFour_019e6a3b-e9a4-7936-83bb-c8165080c99b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/SegmentReportingScheduleofReportableOperatingSegmentInformationDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#SegmentReportingScheduleofReportableOperatingSegmentInformationDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/SegmentReportingScheduleofReportableOperatingSegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_019e6a3b-e9a5-76b2-ab32-6c4ca70c03cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_019e6a3b-e9a5-7b79-b740-f01c3ca8f3e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019e6a3b-e9a5-76b2-ab32-6c4ca70c03cb" xlink:to="loc_us-gaap_LaborAndRelatedExpense_019e6a3b-e9a5-7b79-b740-f01c3ca8f3e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019e6a3b-e9a5-77f7-8a88-f93d0f279197" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019e6a3b-e9a5-76b2-ab32-6c4ca70c03cb" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019e6a3b-e9a5-77f7-8a88-f93d0f279197" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019e6a3b-e9a5-7b8d-8f2b-9adf9472103c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_019e6a3b-e9a5-76b2-ab32-6c4ca70c03cb" xlink:to="loc_us-gaap_DepreciationAndAmortization_019e6a3b-e9a5-7b8d-8f2b-9adf9472103c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://andersen.com/role/AcquisitionsandBusinessCombinationsScheduleofPreliminaryAllocationoftheAggregatePurchasePriceoftheseAcquisitionsDetails" xlink:type="simple" xlink:href="andg-20260630.xsd#AcquisitionsandBusinessCombinationsScheduleofPreliminaryAllocationoftheAggregatePurchasePriceoftheseAcquisitionsDetails"/>
  <link:calculationLink xlink:role="http://andersen.com/role/AcquisitionsandBusinessCombinationsScheduleofPreliminaryAllocationoftheAggregatePurchasePriceoftheseAcquisitionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fad17-bec6-7fe2-80a0-cc165f888010" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019fad17-bec6-75fa-925e-e9427f7bc46b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fad17-bec6-7fe2-80a0-cc165f888010" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019fad17-bec6-75fa-925e-e9427f7bc46b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019fad17-bec6-7a51-8739-3aab8460a32a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fad17-bec6-7fe2-80a0-cc165f888010" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_019fad17-bec6-7a51-8739-3aab8460a32a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationSettlementOfPreExistingArrangements_019ff1c3-068c-7878-8acb-ac1c68f980fe" xlink:href="andg-20260630.xsd#andg_BusinessCombinationSettlementOfPreExistingArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_019fad17-bec6-7fe2-80a0-cc165f888010" xlink:to="loc_andg_BusinessCombinationSettlementOfPreExistingArrangements_019ff1c3-068c-7878-8acb-ac1c68f980fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019fad19-025a-7fde-9543-cadecc8a3787" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_019fad19-025a-7fde-9543-cadecc8a3787" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019fad19-025a-752b-9add-3415851515ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_019fad19-025a-752b-9add-3415851515ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019fad19-025a-7f4a-b691-ead6f787c637" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_019fad19-025a-7f4a-b691-ead6f787c637" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019fad19-025a-7922-b349-45ab0c288974" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_019fad19-025a-7922-b349-45ab0c288974" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssts_019fad19-025a-782a-8eb9-2c06af0c3633" xlink:href="andg-20260630.xsd#andg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_andg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssts_019fad19-025a-782a-8eb9-2c06af0c3633" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_019fad19-025a-7857-8364-a9cf3049d036" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_019fad19-025a-7857-8364-a9cf3049d036" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019fad19-025a-7512-b10c-67ed8ee28f3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_019fad19-025a-7512-b10c-67ed8ee28f3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019fad19-025a-7d2a-9a4d-e3db57a2efcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_019fad19-025a-7d2a-9a4d-e3db57a2efcf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent_019fad19-025a-7913-8b51-03eeb71eed29" xlink:href="andg-20260630.xsd#andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesCurrent_019fad19-025a-7913-8b51-03eeb71eed29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent_019fad19-025a-7ba4-b02d-f329d3df4c60" xlink:href="andg-20260630.xsd#andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_andg_BusinessCombinationRecognizedLiabilityAssumedOperatingLeaseLiabilitiesNoncurrent_019fad19-025a-7ba4-b02d-f329d3df4c60" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_andg_BusinessCombinationRecognizedLiabilityAssumedBargainPurchaseGain_019fad19-025a-72fc-b5b8-d034069288f2" xlink:href="andg-20260630.xsd#andg_BusinessCombinationRecognizedLiabilityAssumedBargainPurchaseGain"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_andg_BusinessCombinationRecognizedLiabilityAssumedBargainPurchaseGain_019fad19-025a-72fc-b5b8-d034069288f2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019fad19-025a-7e16-b07e-4c8e5f19a3df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_019fad19-025a-757f-8b92-05dd209627bc" xlink:to="loc_us-gaap_Goodwill_019fad19-025a-7e16-b07e-4c8e5f19a3df" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
