I am not in the Restaurant business, so I don't know how many meals they typically sell, or how much they charge. Let's say he pays his cooks 30$ more. How lon

I am not in the Restaurant business, so I don't know how many meals they typically sell, or how much they charge. Let's say he pays his cooks 30$ more. How long are they open, how many people work in the kitchen? Two people, 12 hours? So that would be 720$ more per day. How much do they earn per meal? In my country in most restaurants charge around 10$ for a meal. Even assuming no costs for the food resources, that would mean 72 more meals to sell, per day. To me that sounds like quite a challenge.