diff --git a/AMESCoreStudio.WebApi/Controllers/BLL/RPTController.cs b/AMESCoreStudio.WebApi/Controllers/BLL/RPTController.cs
index 6c63bae7..9997ec34 100644
--- a/AMESCoreStudio.WebApi/Controllers/BLL/RPTController.cs
+++ b/AMESCoreStudio.WebApi/Controllers/BLL/RPTController.cs
@@ -2041,8 +2041,12 @@ namespace AMESCoreStudio.WebApi.Controllers.BLL
                         if (standardWorkTimes != null)
                         {
                             result.workTime = (double)standardWorkTimes.TotalCT;
-                        }
+                            var op = 1;
+                            if (standardWorkTimes.OPCNT != 0)
+                                op = standardWorkTimes.OPCNT;
 
+                            result.workTime = Math.Round(result.workTime / op, 2);
+                        }
 
                         // 標準總工時 = 標準工時 * 實際投入數量
                         var allWorkTime = result.workTime * result.actualQty;