diff --git a/app/services/pricing.py b/app/services/pricing.py
index f31dc96..c707030 100644
--- a/app/services/pricing.py
+++ b/app/services/pricing.py
@@ -121,7 +121,7 @@ class PricingService:
             row[price_type] = price
         return row
 
-    def smooth_markup(price, markup_bands):
+    def smooth_markup(self, price, markup_bands):
         """
         Applies a smoothed markup based on the given price and markup bands.
         Uses numpy for smooth transitions.
@@ -347,8 +347,13 @@ class PricingService:
         
         price_lookup = self.get_all_prices_for_products(df['product_id'].unique())
         
-        # Apply price columns
-        df = df.apply(lambda row: self.apply_price_to_df_columns(row, price_lookup), axis=1)
+        # Convert the nested dict to a DataFrame
+        price_df = pd.DataFrame.from_dict(price_lookup, orient='index')  # product_id becomes index
+        price_df.index.name = 'product_id'
+        price_df.reset_index(inplace=True)
+
+        # Merge onto your main DataFrame
+        df = df.merge(price_df, on='product_id', how='left')
 
         logger.debug(f"Applying pricing algorithm: {ACTIVE_PRICING_ALGORITHIM}")