Gonzalo T. Corporation, a large retailer of boots assembled the information shown below for the quarter ended June 30: Total sales revenue $208000 Selling price per pair of boots $800 Variable selling expense per pair of boots $43 Variable administrative expense per pair of boots $20 Total fixed selling expense $30000 Total fixed administrative expense $20000 Beginning merchandise inventory $30000 Ending merchandise inventory $20000 Merchandise purchases $52400 Q.: What was the contribution margin for each pair of boots sold during the quarter? A: $