Are you sure about that? I thought the restaurant does. On DoorDash's Help page (https://help.doordash.com/merchants/s/article/How-to-Maximiz...) There's a quote: "To provide a high-quality experience for all of our customers, we set prices on DoorDash the same as our in-store prices. DoorDash even enables operators to set different pricing for delivery and pickup, but a core part of us providing high-quality customer service is accomplished through our consistent menu pricing." - Manuel Bucio, Owner, Razpachos" That seems to indicate the restaurant sets the prices.