Marwick's Pianos, Incorporated, purchases pianos from a large manufacturer for an average cost of $1,519 per unit and then sells them to retail customers for an average price of $3,000 each. The company's selling and administrative costs for a typical month are presented below: Costs Selling Advertising Sales salaries and commissions Delivery of pianos to customers Utilities Depreciation of sales facilities Administratives Executive salaries Insurance Clerical Depreciation of office equipment Cost Formula $937 per month $4,798 per month, plus 5% of sales. $58 per piano sold $648 per month $5,075 per month $13,578 per nonth $681 per month $2,522 per month, plus $35 per piano sold 5950 per month During August, Marwick's Pianos, Incorporated, sold and delivered 61 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.