diff --git a/x/cdp/keeper/savings.go b/x/cdp/keeper/savings.go
index c9d3fe53..37dda6ec 100644
--- a/x/cdp/keeper/savings.go
+++ b/x/cdp/keeper/savings.go
@@ -26,7 +26,10 @@ func (k Keeper) DistributeSavingsRate(ctx sdk.Context, debtDenom string) error {
 
 	modAccountCoins := k.getModuleAccountCoins(ctx, dp.Denom)
 	totalSupplyLessModAccounts := k.supplyKeeper.GetSupply(ctx).GetTotal().Sub(modAccountCoins)
-	surplusDistributed := sdk.ZeroInt()
+	// values to use in interest calculation
+	totalSurplus := sdk.NewDecFromInt(surplusToDistribute)
+	totalSupply := sdk.NewDecFromInt(totalSupplyLessModAccounts.AmountOf(debtDenom))
+
 	var iterationErr error
 	k.accountKeeper.IterateAccounts(ctx, func(acc authexported.Account) (stop bool) {
 		_, ok := acc.(supplyexported.ModuleAccountI)
@@ -40,11 +43,10 @@ func (k Keeper) DistributeSavingsRate(ctx sdk.Context, debtDenom string) error {
 		}
 		// (balance * rewardToDisribute) /  totalSupply
 		// interest is the ratable fraction of savings rate owed to that account, rounded using bankers rounding
-		interest := (sdk.NewDecFromInt(debtAmount).Mul(sdk.NewDecFromInt(surplusToDistribute))).Quo(sdk.NewDecFromInt(totalSupplyLessModAccounts.AmountOf(debtDenom))).RoundInt()
+		interest := (sdk.NewDecFromInt(debtAmount).Mul(totalSurplus)).Quo(totalSupply).RoundInt()
 		// sanity check, if we are going to over-distribute due to rounding, distribute only the remaining savings rate that hasn't been distributed.
-		if interest.GT(surplusToDistribute.Sub(surplusDistributed)) {
-			interest = surplusToDistribute.Sub(surplusDistributed)
-		}
+		interest = sdk.MinInt(interest, surplusToDistribute)
+
 		// sanity check - don't send saving rate if the rounded amount is zero
 		if !interest.IsPositive() {
 			return false
@@ -55,7 +57,7 @@ func (k Keeper) DistributeSavingsRate(ctx sdk.Context, debtDenom string) error {
 			iterationErr = err
 			return true
 		}
-		surplusDistributed = surplusDistributed.Add(interest)
+		surplusToDistribute = surplusToDistribute.Sub(interest)
 		return false
 	})
 	return iterationErr