new monthly savings

app.py

@@ -91,7 +91,9 @@ def financial_analysis(consumption: float, production: float, storage: float) ->
         grid_offset = min(grid_purchased, storage)
         grid_purchased -= grid_offset
 
-    monthly_savings = (consumption-(common_area_consumption *30)* st.session_state.grid_price / 100
+    monthly_savings = (
+        consumption - (common_area_consumption * 30) * st.session_state.grid_price / 100
+    )
 
     total_investment = (
         st.session_state.solar_panels * st.session_state.panel_price