Sales Mix Management System

Enter ingredient quantities **per unit sold**. Example: 12PC item uses 12 chicken pieces → enter 12 in CHIX column.

Theoretical Usage = Sum (quantity sold × recipe per ingredient) for each day.

Actual Usage = Beginning Inventory + Purchases + Inward Transfers - Outward Transfers - Ending Inventory - Waste.

JSON format includes: ingredients, items (with recipes), sales, inventory.