The merchant usually bears the cost of the discount.

The 50% off credit card food promotion is a promotional strategy designed to attract customers and promote catering sales. In such events, merchants offer food discounts so that customers can enjoy delicious food at cheaper prices. Specifically, when a customer uses an eligible credit card to make a purchase, the merchant will calculate the discounted amount based on the discount ratio stipulated in the activity (usually 50% off, that is, half of the original price). Customers only need to pay the discounted amount, and merchants need to bear the discounted portion.