Ch. 1: HW i Saved Help 2 Marwick's Pianos, Inc., purchases pianos from a large manufacturer for an average cost of $1,513 per unit and then sells them to retail customers for an average price of $2,800 each. The company's selling and administrative costs for a typical month are presented below Costs Selling: points Cost Formula Advertising Sales salaries and commissions Delivery of pianos to customers Utilities Depreciation of sales facilities $942 per month $4,798 per month, plus 5% of sales $63 per piano sold $650 per month $4,941 per month eBook Administrative: Executive salaries Insurance Clerical Depreciation of office equipment $13,460 per month $696 per month $2,462 per month, plus $41 per piano sold $935 per month Print References During August, Marwick's Pianos, Inc., sold and delivered 58 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