Question

how do I calculate total revenue and total economic profit for a pizza shop at each rate output

Answer 1

You probably have a demand function or table, which shows price (P) and the quantity demanded (Q). Total revenue is simply P*Q. You also probably have some supply function or table, which shows the average and/or marginal costs of producing each level of Q. Average cost*Q = total costs. Profit is simply total revenue less total costs. (Be careful; accounting profits are not the same as economic profits; economic profits account for the opportunity costs of running the business).