Well if I were to become a teacher, I would employ several strategies to begin my study. my advice would be to host several different categories of teaching (group work, lectures, note taking, hands...
It is their revenue or the amount of sales they make.
The best place to find all this information is in company handbook. It isn't a bad idea to ask your boss about specific things either.
a company turnover is based on the , production loss profit expencess labour cost etc . . .
My guess would be 24 Hour Fitness.