Sprwt (1) creates or updates the ingredient's Supplier IDs row for the receipt supplier with the Supplier ID, COGS and Total Product Servings; (2) sets the ingredient's Ingredients COGS per Qty to (COGS / Total Product Servings) x Base Weight; (3) updates Base Weight and Base Unit if you entered them; and (4) sets the receipt supplier as the ingredient's Supplier Default. The card is then marked "Updated Successfully" and locked. Note that the single-card Confirm Changes does not change stock; stock is added only by the bulk Confirm Changes and Update Macros action, which uses the Ingredient Stock field plus Qty Purchased.