GGB Almost always, and deliberately. A delivery order carries commission, packaging and often a promotion that the dine-in price was never built to absorb. Work out the net price that leaves the contribution you want after those lines, decide how much of that gap you will actually pass on, and set the delivery menu from that decision. What you must not do is list the dine-in price on the app and hope the volume covers it — the arithmetic in this piece shows what that hope costs per order.
From Cost-Optimised Pricing Makes Restaurants. Reckless Pricing Quietly Unmakes Them. — the full reading, with the method behind this answer.