diff --git a/app/Service/Api/Pay/PlacePayService.php b/app/Service/Api/Pay/PlacePayService.php
index 7d31e8c..a99af9e 100644
--- a/app/Service/Api/Pay/PlacePayService.php
+++ b/app/Service/Api/Pay/PlacePayService.php
@@ -274,7 +274,7 @@ class PlacePayService extends BaseService
     private function checkPayOrder(): void
     {
         $this->payInfo = $this->payOrderModel->getInfoByOrderIdAndTypeAndRType($this->orderId,$this->orderType,$this->payType);
-        if (!empty($this->payInfo)) return;
+        if (empty($this->payInfo)) return;
         if ($this->payInfo->status == PayCode::FINISH_PAY) throw new ErrException('该订单已支付，请确认后重试');
         if ($this->payInfo->recharge_type != $this->payType) throw new ErrException('该订单调起支付失败');
         if ($this->payInfo->order_type != $this->orderType) throw new ErrException('传值错误');
diff --git a/app/Service/ServiceTrait/Api/OrderTrait.php b/app/Service/ServiceTrait/Api/OrderTrait.php
index 622656a..5371c94 100644
--- a/app/Service/ServiceTrait/Api/OrderTrait.php
+++ b/app/Service/ServiceTrait/Api/OrderTrait.php
@@ -362,7 +362,7 @@ trait OrderTrait
             $orderMaxPrice = max(array_column($this->orderRes['good'],'price'));
             $this->orderRes['coupon']['amount'] = match ($this->orderRes['coupon']['coupon_type']) {
                 CouponCode::COUPON_TYPE_INSTANT_REDUCTION => $this->orderRes['coupon']['amount'],
-                CouponCode::COUPON_TYPE_DISCOUNT => bcmul(bcdiv((string)$this->orderRes['coupon']['ratio'],"100",2),(string)$orderMaxPrice,2),
+                CouponCode::COUPON_TYPE_DISCOUNT => bcmul(bcdiv(bcsub("100",(string)$this->orderRes['coupon']['ratio'],2),"100",2),$orderMaxPrice,2),
                 default => 0
             };
         }