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: Sales Sales in units Selling price per pair of skis Variable selling expense per pair of skis Amount $ 220,000 440 pairs $ 500 $ 35 Variable administrative expense per pair of skis $ 19 Total fixed selling expense $ 31,000 Total fixed administrative expense $ 28,000 Beginning merchandise inventory $ 80,000 Ending merchandise inventory $ 60,000 Merchandise purchases $ 100,000 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? IF