diff --git a/internal/logic/public/portal/purchaseCheckoutLogic.go b/internal/logic/public/portal/purchaseCheckoutLogic.go
index 7fa5827..a132acb 100644
--- a/internal/logic/public/portal/purchaseCheckoutLogic.go
+++ b/internal/logic/public/portal/purchaseCheckoutLogic.go
@@ -271,10 +271,11 @@ func (l *PurchaseCheckoutLogic) epayPayment(config *payment.Payment, info *order
 	client := epay.NewClient(epayConfig.Pid, epayConfig.Url, epayConfig.Key, epayConfig.Type)
 
 	// Convert order amount to CNY using current exchange rate
-	amount, err := l.queryExchangeRate("CNY", info.Amount)
-	if err != nil {
-		return "", err
-	}
+    amount, err := l.queryExchangeRate("CNY", info.Amount)
+    if err != nil {
+        return "", err
+    }
+    amount = math.Round(amount*100) / 100
 
 	// Build notification URL for payment status callbacks
 	notifyUrl := ""
@@ -313,10 +314,11 @@ func (l *PurchaseCheckoutLogic) CryptoSaaSPayment(config *payment.Payment, info
 	client := epay.NewClient(epayConfig.AccountID, epayConfig.Endpoint, epayConfig.SecretKey, epayConfig.Type)
 
 	// Convert order amount to CNY using current exchange rate
-	amount, err := l.queryExchangeRate("CNY", info.Amount)
-	if err != nil {
-		return "", err
-	}
+    amount, err := l.queryExchangeRate("CNY", info.Amount)
+    if err != nil {
+        return "", err
+    }
+    amount = math.Round(amount*100) / 100
 
 	// Build notification URL for payment status callbacks
 	notifyUrl := ""