diff --git a/camisatoshi_wordpress_reports/controllers.py b/camisatoshi_wordpress_reports/controllers.py
index 300794f..51f2f13 100644
--- a/camisatoshi_wordpress_reports/controllers.py
+++ b/camisatoshi_wordpress_reports/controllers.py
@@ -8,7 +8,9 @@ from woocommerce import API
 
 from camisatoshi_wordpress_reports.order import Order, Orders
 from camisatoshi_wordpress_reports.constants import (
-    um_first_agreement_percentage, DEFAULT_DOTENV_FILEPATH,
+    um_first_agreement_percentage,
+    DEFAULT_DOTENV_FILEPATH,
+    bbo_royalty_fee,
 )
 
 API_CONFIG = dotenv_values(
@@ -107,7 +109,10 @@ def generate_um_report(
                 "units_sold": order.units_of_sku(relevant_sku),
                 "eur_income": order.sales_of_sku(relevant_sku),
                 "sats_income": order.sats_received_for_sku(relevant_sku),
-                "sats_owed_to_um": order.sats_received_for_sku(relevant_sku)
+                "sats_owed_to_um": (
+                    order.sats_received_for_sku(relevant_sku)
+                    * (1 - bbo_royalty_fee)
+                )
                 * um_first_agreement_percentage,
             }
         )