BuyItemAmountDiscount

The BuyItemAmountDiscount is what the shelf will say when selecting an item and there's a discount applied to the shelf's stock.

ShelfItemAmountDiscount: ["There's a discount {1} on {2}, how many would you like?"]

{1} = "of" + percentage of discount (optional) (for ex. 11%)

{2} = Chosen Item's name (plural) (for ex. Potions)

ShelfItemAmountDiscount 1

Since the {1} is optional you can also just put:

ShelfItemAmountDiscount: ["There's a discount on {2}, how many would you like?"]

ShelfItemAmountDiscount 2