Inventory Costing Methods Tyler Company has the following information related to purchases and sales of one of its inventory items. Date Sept. 1 Beginning inventory400 units$12 Sept. 10 Purchase Sept. 20 Sales Sept. 25 Purchase Assume the company uses a perpetual inventory system. Required: Description Units Purchased at Cost Units Sold at Retail 600 units $14 650 units $24 800 units at $15 ) 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