Concessions-only deal example: Buy 1 popcorn, get a free small drink (or pay the difference for a larger size) and optionally get $1 off an ice cream

In this example, a customer can buy any popcorn item and receive a small drink for free, as well as optionally buying any ice cream item with a $1.00 discount. If the customer wishes to pay the amount for upgrading to a large, they can do so.

For example: $1.00 for a medium drink, $2.00 for a large drink.

Screenshot of the Promotion/Discount form: