diff --git a/dl-module-jx/src/main/java/cn/iocoder/yudao/module/base/service/impl/DataViewServiceImpl.java b/dl-module-jx/src/main/java/cn/iocoder/yudao/module/base/service/impl/DataViewServiceImpl.java
index 1da1b8a3..2dec7553 100644
--- a/dl-module-jx/src/main/java/cn/iocoder/yudao/module/base/service/impl/DataViewServiceImpl.java
+++ b/dl-module-jx/src/main/java/cn/iocoder/yudao/module/base/service/impl/DataViewServiceImpl.java
@@ -148,10 +148,10 @@ public class DataViewServiceImpl implements DataViewService {
             double schoolRate=0;
             if(allNum>0){
                 if(coachNum>0){
-                    coachRate = coachNum / allNum;
+                    coachRate = (double)coachNum / allNum;
                 }
                 if(schoolNum>0){
-                    schoolRate = schoolNum / allNum;
+                    schoolRate = (double)schoolNum / allNum;
                 }
             }
             studentInfoMap.put("coachNum",coachNum);