80% less, I don't believe that. 1) apps will have promotions, vouchers can be used for discounts, from app, not restaurants; 2) delivery doesn't occupy tables i

80% less, I don't believe that. 1) apps will have promotions, vouchers can be used for discounts, from app, not restaurants; 2) delivery doesn't occupy tables in your restaurant, it is the 'extra' money you can make; 3) sometimes restaurant will sell for a small loss or no profit to promote their names.