Marwicks Pianos, Incorporated, purchases pianos from a large manufacturer for an average cost of $1,501 per unit and then sells them to retail customers for an average price of $3,300 each. The companys selling and administrative costs for a typical month are presented below: Costs Cost Formula Selling: Advertising $931 per month Sales salaries and commissions $4,772 per month, plus 4% of sales Delivery of pianos to customers $60 per piano sold Utilities $649 per month Depreciation of sales facilities $4,975 per month Administrative: Executive salaries $13,530 per month Insurance $692 per month Clerical $2,518 per month, plus $40 per piano sold Depreciation of office equipment $887 per month During August, Marwicks Pianos, Incorporated, sold and delivered 55 pianos. Required: 1. Prepare a traditional format income statement for August. 2. Prepare a contribution format income statement for August. Show costs and revenues on both a total and a per unit basis down through contribution margin.