4. (8 points) The Alpine House, Inc., is a large retailer of snow skis. The company assembled the information shown below for the quarter ended March 31: Amount Sales $ 166,400 Sales in units 208 pairs Selling price per pair of skis $ 800 Variable selling expense per pair of skis $ 42 Variable administrative expense per pair of skis $ 10 Total fixed selling expense $ 23,000 Total fixed administrative expense $ 28,000 Beginning merchandise inventory $ 40,000 Ending merchandise inventory $ 30,000 Merchandise purchases $ 115,000 Note: to calculate COGS you will need to use the following equation: Beg. Merch. Inventory + Merch. Purchases End. Merch. Inventory. COGS is a variable expense. Required: 1. Prepare a traditional income statement for the quarter ended March 31. 2. Prepare a contribution format income statement for the quarter ended March 31. 3. What was the contribution margin per unit