diff --git a/web/calculators/__init__.py b/web/calculators/__init__.py
index 55040fd..f297547 100644
--- a/web/calculators/__init__.py
+++ b/web/calculators/__init__.py
@@ -1,3 +1,5 @@
+from decimal import Decimal
+
 from commons.models.data_fujian import DataFujian
 from commons.models.data_network import DataNetwork
 from commons.models.fujian_survey import FujianSurvey
@@ -217,7 +219,7 @@ class Calculator:
         fluctuating = sum(self._fluctuatings) / sum([self.weight_ftb, self.weight_ss, self.weight_fhb, self.weight_network, self.weight_survey])
         fluctuating = self.round_method(fluctuating, self.round_bit)
 
-        price = fluctuating + previous_price
+        price = Decimal(fluctuating) + Decimal(previous_price)
         price = self.round_method(price, self.round_bit)
 
         return price, fluctuating
diff --git a/web/tasks/once/calculate.py b/web/tasks/once/calculate.py
index 2cc972c..dbdcf67 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(2023, 3)
+        calculate(2024, 4)
 
         # for i in range(2, 12):
         #     calculate(2022, i+1)