Each scenario provides the price and output level at which a​ single-price monopolist is currently operating. In each​ case, determine the​ firm's profit per​ unit, the​ firm's total​ profit, and whether the firm should increase or decrease its output in order to maximize profits.​ (Drawing diagrams may help you to answer these questions. Prices and costs are in​ dollars.)
p=18, Q=600​, MR=8​, ATC=8​, MC=8
The​ firm's profit per unit is $__ and the​ firm's total profit is $ __.