Prepare a contribution format income statement for the quarter ended March 31. Prepare a traditional income statement for the quarter ended March 31. What was the contribution margin per unit? (Round your final answer to nearest whole dollar.) The Alpine House, Incorporated, is a large retailer of snow skis. The company assembled the information shown below for the quarter ended March 31: 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