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 $150,000 Selling price per pair of skis $ 750 Variable selling expense per pair of $ 50 skis Variable administrative expense per $ 10 pair of skis Total fixed selling expense $ 20,000 Total fixed administrative expense $ 20,000 Beginning merchandise inventory $ 30,000 Ending merchandise inventory $ 40,000 Merchandise purchases $100,000 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