Gibson Ski Company manufactures snow skis. During the most recent accounting period, the company's finishing department transferred 4,350 sets of skis to finished goods. At the end of the accounting period, 490 sets of skis were estimated to be 40 percent complete. Total product costs for the finishing department amounted to $318,220. Required a. Determine the cost per equivalent. b. Determine the cost of the goods transferred out of the finishing department. c. Determine the cost of the finishing department's ending work in process inventory