乐器提供方式修改

mec-biz/src/main/java/com/ym/mec/biz/service/impl/MusicGroupServiceImpl.java

@@ -470,7 +470,7 @@ public class MusicGroupServiceImpl extends BaseServiceImpl<String, MusicGroup> i
                 }
                 orderAmount = orderAmount.add(goodsGroup.getPrice());
             }
-            orderAmount.subtract(remitFee);
+            orderAmount = orderAmount.subtract(remitFee);
         }
 
         //单独辅件