ework Assignment Saved Help Marwick's Pianos, Inc., purchases pianos from a large manufacturer for an average cost of $1,506 per unit and then sells them to retail customers for an average price of $2,900 each. The company's selling and administrative costs for a typical month are presented below: Costs Cost Formula Selling: Advertising $956 per month Sales salaries and commissions $4,801 per month, plus 4% of sales Delivery of pianos to customers $62 per piano sold Utilities $662 per month Depreciation of sales facilities $4, 986 per month Administrative: Executive salaries $13,564 per month Insurance $707 per month Clerical $2, 469 per month, plus $35 per piano sold Depreciation of office equipment $908 per month During August, Marwick's Pianos, Inc., sold and delivered 57 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