diff --git a/project_report/report/project_revenue_custom_report.py b/project_report/report/project_revenue_custom_report.py
index 25a9a8f..d11b17c 100755
--- a/project_report/report/project_revenue_custom_report.py
+++ b/project_report/report/project_revenue_custom_report.py
@@ -31,13 +31,13 @@ class ProjectRevenueCustomReport(models.Model):
     profit_per = fields.Float(string='Profit (%)', digits=(16, 2))
     profit_amt = fields.Float(string='Profit Amount', digits=(16, 2))
     expenses_amt = fields.Float(string='Expenses Amount', digits=(16, 2))
-    pro_hourly_rate = fields.Float("Hourly Rate", group_operator="sum")
+    pro_hourly_rate = fields.Float("Hourly Rate", group_operator="avg")
     budgeted_hours = fields.Float("Budgeted Hours", digits=(16, 2), readonly=True, group_operator="sum")
     budgeted_revenue = fields.Float("Budgeted Revenue", digits=(16, 2), readonly=True, group_operator="sum")
     actual_revenue = fields.Float("Actual Revenue", digits=(16, 2), readonly=True, group_operator="sum")
     actual_cost = fields.Float("Actual Cost", digits=(16, 2), readonly=True, group_operator="sum")
     overall_budgeted_revenue = fields.Float("Overall Budgeted Rev.", digits=(16, 2), readonly=True, group_operator="sum")
-    overall_hourly_rate = fields.Float("Overall Hourly Rate", group_operator="sum")
+    overall_hourly_rate = fields.Float("Overall Hourly Rate", group_operator="avg")
 
 
     """def read_group(self, domain, fields, groupby, offset=0, limit=None, orderby=False, lazy=True):