The Alpine House, Inc., is a large retailer of snow skis. The company assembled the information showrn below for the quarter ended March 31: Amount Total sales revenue 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 $1,344,000 $ 420 48 18 $ 135,000 $ 110,000 $ 80,000 $ 110,000 $ 300,000