diff --git a/.Lib9c.Tests/Action/ValidatorDelegation/ValidatorDelegationTestBase.cs b/.Lib9c.Tests/Action/ValidatorDelegation/ValidatorDelegationTestBase.cs
index 8105c0839f..e1b05ca90c 100644
--- a/.Lib9c.Tests/Action/ValidatorDelegation/ValidatorDelegationTestBase.cs
+++ b/.Lib9c.Tests/Action/ValidatorDelegation/ValidatorDelegationTestBase.cs
@@ -25,6 +25,7 @@ namespace Lib9c.Tests.Action.ValidatorDelegation;
 using Nekoyume.ValidatorDelegation;
 using Xunit;
 using Nekoyume.Action.Guild.Migration.LegacyModels;
+using Nekoyume.Delegation;
 
 public class ValidatorDelegationTestBase
 {
@@ -592,7 +593,10 @@ protected static FungibleAssetValue CalculateBonusPropserReward(
     }
 
     protected static FungibleAssetValue CalculateClaim(BigInteger share, BigInteger totalShare, FungibleAssetValue totalClaim)
-        => (totalClaim * share).DivRem(totalShare).Quotient;
+    {
+        var multiplier = BigInteger.Pow(10, (int)Math.Floor(BigInteger.Log10(totalShare)) + RewardBase.Margin);
+        return ((totalClaim * multiplier).DivRem(totalShare).Quotient * share).DivRem(multiplier).Quotient;
+    }
 
     protected static FungibleAssetValue CalculateCommunityFund(ImmutableArray<Vote> votes, FungibleAssetValue reward)
     {