diff --git a/apps/enm/tasks.py b/apps/enm/tasks.py
index 2269a649..bfd3c6e6 100644
--- a/apps/enm/tasks.py
+++ b/apps/enm/tasks.py
@@ -149,7 +149,7 @@ def cal_mpointstat_hour(mpointId: str, year: int, month: int, day: int, hour: in
                     first_val = getattr(mrs0.last(), f'val_{val_type}')
                     if last_val >= first_val:
                         val = last_val - first_val
-                    elif first_val - last_val > 0 and first_val - last_val < 1:
+                    elif first_val - last_val > 0 and (first_val - last_val)/first_val < 0.01:
                         val = 0
                         myLogger.info(f'{mpoint.code}--{dt}--{last_val}--{first_val}--last_val 小于 first_val')
                     else: