Tyler Company has the following information related to purchases and sales of one of its inventory items. Date Description Units Purchased at Cost Units Sold at Retail Sept. 1 Beginning inventory 400 units @ $17 Sept. 10 Purchase 600 units @ $18 Sept. 20 Sales 690 units @ $31 Sept. 25 Purchase 800 units at $20 Assume the company uses a perpetual inventory system. Required: Calculate ending inventory and cost of goods sold using the FIFO, LIFO, and average cost methods. FIFO LIFO Avg Cost Cost of goods sold Ending inventory