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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: 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