diff --git a/web/calculators/__init__.py b/web/calculators/__init__.py
index d1cf4b1..b105b52 100644
--- a/web/calculators/__init__.py
+++ b/web/calculators/__init__.py
@@ -1,4 +1,4 @@
-from decimal import Decimal
+from decimal import Decimal, ROUND_HALF_UP
 
 from commons.models.data_fujian import DataFujian
 from commons.models.data_network import DataNetwork
@@ -37,7 +37,8 @@ class Helper:
 class RoundMethod:
     @staticmethod
     def normal(n, round_bit):
-        result = round(n, round_bit)
+        q_ext = Decimal('0.' + '0' * round_bit)
+        result = Decimal(n).quantize(q_ext, rounding=ROUND_HALF_UP)
         return result if round_bit != 0 else int(result)
 
     @staticmethod
diff --git a/web/tasks/once/calculate.py b/web/tasks/once/calculate.py
index 14f1a38..19da17d 100644
--- a/web/tasks/once/calculate.py
+++ b/web/tasks/once/calculate.py
@@ -39,7 +39,7 @@ if __name__ == '__main__':
     from core.factory import ClientApp
 
     with ClientApp().app_context():
-        calculate(2025, 3)
+        calculate(2025, 5)
 
         # for i in range(2, 12):
         #     calculate(2022, i+1)