End Zone Sports Bar & Grill Economics Calculus Project

-Calculus for Business, Social and Behavioral Sciences-

I have a final project that requires making a real life problem based on calculus. The professor said we have to go out and find numbers/calculations to base the problem off of. It also requires we use a specific equation from the material in the class, I specified the type of calculus I am in above. The direction I was going towards revolves around marginal revenue, profit and cost. If anyone can help with his or come up with a problem I would greatly appreciate it! Thank you!

Try to relate it to a restaurant: how much spent on food, beverages, how much we have to spend on supplies, paying employees, etc.

***I need to have a key, equation used, Calculus topic used, explanation of all work***

Note that this is Pre-Calculus curriculum, and features only basic Calculus equations and knowledge.