I also want to open a store if the restruant doesn't work out and need help in the hidden costs?

I would like to open a restuant called Big B's and if it doesn't prove feasible then i would like to open a store called the Bargain's. I want to know every single cost thats going to affect me, from buying stuff, to paying for tvs, cable bills, phone bills, patents, insurance, security cameras, a secuirty staff, the cost of lightbulbs, the cost of running lights, employee costs, supplies, computors, air conditioning, heating, water bills for bathrooms and overhead and hidden costs and startup costs, after all that i want to know how theres room for a profit? Also do i have to adjust for theft? Thanks and no hurtful or mean comments please!