diff --git a/src/main/resources/templates/admin/project_estimate_add.ftl b/src/main/resources/templates/admin/project_estimate_add.ftl
index 508469c..7ee6758 100644
--- a/src/main/resources/templates/admin/project_estimate_add.ftl
+++ b/src/main/resources/templates/admin/project_estimate_add.ftl
@@ -648,7 +648,7 @@
     function changeToNumber(value) {
         value = value.replace(/[^\-\d.]/g, ""); //清除“-”、“数字”和“.”以外的字符
         value = value.replace(/\.{2,}/g, "."); //只保留第一个. 清除多余的
-        return value;
+        Number(value);
     }
 </script>
 </@defaultLayout.layout>