Martin Company had the following information for the year ending December 31: Units Unit Cost $40 320 Beginning inventory Purchase: April 6 42 600 570 Sale: May 4 Purchase July 19 450 43 Sale: September 9 550 Purchase October 10 330 45 Martin uses the perpetual inventory system and the FIFO method. Required: Using FIFO (a) Compute the cost of ending inventory. (b) Compute the cost of goods sold for the year, Cost of ending inventory Cost of goods sold so