update

src/main/java/com/gogirl/application/order/mall/impl/MallOrderServiceImpl.java

@@ -416,7 +416,7 @@ public class MallOrderServiceImpl extends ServiceImpl<MallOrderMapper, MallOrder
 
         if (agentUser != null && agentUser.getDiscount().compareTo(BigDecimal.ONE) < 0) {
             mallOrder.setTotalDiscountAmount(mallOrder.getTotalAmount().multiply(BigDecimal.ONE.subtract(agentUser.getDiscount())));
-            mallOrder.setTotalPayAmount(mallOrder.getTotalAmount().multiply(agentUser.getDiscount()));
+            mallOrder.setTotalPayAmount(mallOrder.getTotalAmount().subtract(mallOrder.getTotalDiscountAmount()));
         } else {
             mallOrder.setTotalPayAmount(mallOrder.getTotalAmount());
         }