My current strategy for how much total I'll pay for a coffee is FlOOR(price+.50) + 1, which keeps the bill nice and clean and kicks some goodwill towards someone who makes less than 1/5th the average earnings of my coworkers.
Probably not. Food service is ruthlessly competitive and making a profit after paying for product, rent, utilities, labor, financing and/or franchise fees is easier said than done.
