Calculate gross profit for the following situation: National Storage Company had sales of $1,000,000, sales discounts of $2,500, sales returns and allowances of $15,000, and a cost of goods sold of $525,000.

Firms like papa john’s, domino’s, and pizza hut sell pizza and other products that are differentiated in nature. while numerous pizza chains exist in most locations, the differentiated nature of these firms’ products permits them to charge prices above marginal cost. given these observations, is the pizza industry most likely a monopoly, perfectly competitive, monopolistically competitive, or an oligopoly industry?