Sprwt compares the receipt line with the ingredient on file and flags differences in a yellow box: a different pack size or unit, a price change (shown as old -> new with the percentage up or down), or a different default supplier. When the unit differs you can click Convert, Recalculate Macros, and Update Stock: Sprwt converts the receipt's pack size into the ingredient's unit using built-in weight, volume and count tables (oz/lb/g/kg, fl oz/cup/pint/quart/gallon/liter, dozen), scales Total Product Servings the same way, adds Total Product Servings x Qty Purchased to the Ingredient Stock field and triggers an AI macro recalculation for the ingredient. If no automatic conversion exists, a Manual conversion needed row asks you how many of the ingredient's unit one receipt unit equals; click Apply.