Credit card food 50% off campaigns are a promotional strategy designed to attract customers and boost restaurant sales. In this type of campaign, merchants offer discounts on gourmet foods so that customers can enjoy them at a cheaper price. Specifically, when a customer makes a purchase with an eligible credit card, the merchant will calculate the discounted amount based on the discount percentage specified in the campaign (usually 50%, i.e. half of the original price). The customer only pays the discounted amount and the merchant is responsible for the discounted portion.