4. (6 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 Variable administrative expense per pair of skis Total fixed selling expense Total fixed administrative expense Beginning merchandise inventory Ending merchandise inventory Merchandise purchases $ 166,400 208 pairs 800 62 10 $ 23,000 $ 28,000 $ 35,000 $ 60,000 $ 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