GGB Sharjah is a dry emirate, so the alcohol revenue line that subsidises food margin in licensed markets simply does not exist there. That is not a small detail — it changes the economics. A concept moving from Dubai has to make the food, soft-beverage and footfall numbers stand on their own, which is exactly the kind of thing to model before you sign, not after.
From Sharjah Restaurant Licence Cost: Every Fee, Explained — the full reading, with the method behind this answer.