# 342 Fix

* fixes bug where rounding error on aggregated db SUM() would occur
* simplifies code base

compensation/models/compensation.py

@@ -199,7 +199,9 @@ class AbstractCompensation(BaseObject,
         Returns:
 
         """
-        return qs.aggregate(Sum("surface"))["surface__sum"] or 0
+        val = qs.aggregate(Sum("surface"))["surface__sum"] or 0
+        val = float('{:0.2f}'.format(val))
+        return val
 
     def quality_check(self) -> CompensationQualityChecker:
         """ Performs data quality check