Update formulor calculate making amout before fee

KyberNetwork · Dec 17, 2024 · 2200649 · 2200649
1 parent 0bf23e2
commit 2200649
Showing 1 changed file with 3 additions and 10 deletions.
diff --git a/pkg/source/limitorder/pool_simulator_calc_amount_in.go b/pkg/source/limitorder/pool_simulator_calc_amount_in.go
@@ -151,18 +151,11 @@ func (p *PoolSimulator) calcMakerAssetAmountBeforeFee(order *order, makingAmount
 	}
 
 	// makingAmountBeforeFee = makingAmount * BasisPoint / (BasisPoint - feePct)
-
-	basicPointF := new(big.Float).SetInt(constant.BasisPoint)
-	makingAmountBeforeFeeF := new(big.Float).Mul(
-		new(big.Float).SetInt(makingAmount),
-		new(big.Float).Quo(
-			basicPointF,
-			new(big.Float).Sub(basicPointF, new(big.Float).SetInt64(int64(feePct))),
-		),
+	makingAmountBeforeFee = divCeil(
+		new(big.Int).Mul(makingAmount, constant.BasisPoint),
+		new(big.Int).Sub(constant.BasisPoint, big.NewInt(int64(feePct))),
 	)
 
-	makingAmountBeforeFee, _ = makingAmountBeforeFeeF.Int(nil)
-
 	// fee = makingAmount - makingAmountBeforeFee
 	fee = new(big.Int).Sub(makingAmount, makingAmountBeforeFee)