How To Make Money Running A Restaurant?

I just started another restaurant with my chef/owner/mogul and I made over §2,000 profit on day 2. One chef, one waiter, one host, all paid lowest wages. They had skills of 3 after I paid for basic training on day 1. Owner and partner greeted every group, checked on every table, the restaurant had level 2 food ( if my chef is level 2, my food is 1 or 2 level... if chef is level 6 my food is 3 and 4 level, and when chef hits skill 8 I'll put the food up to level 5).

My mark up was %250.

I didn't us any advertising (I never have.).