Update app.py

app.py

@@ -557,7 +557,11 @@ def get_farmer_report(farmer_name, end_date=None, interest_rate=None):
         detailed_df_display['Balance'] = detailed_df_display['Balance'].apply(format_indian_currency)
         
         # Summary statistics
-        remaining_balance = balance
+        remaining_balance = (
+            -principal_due if principal_due > 0
+            else surplus_to_farmer
+        )
+
         interest_accrued = total_interest
 
         remaining_balance = (