The Apex Trading Corp.'s records show the following inventory transactions during 2016 January 1 balance 100 units, cost of $3 each February purchases 200 units, cost of $4 each November purchases 400 units, cost of $5 each During December, the company sold 500 units. Compute the cost of the ending inventory, using the FIFO method Compute the cost of the ending inventory, using the LIFO method Compute the cost of goods sold, using the LIFO method Compute the cost of the ending inventory, using the average cost method