Explanaon: Units in ending inventory = 2,000 + 1,500 + 1,000 + 500 - 3,600 sold = 1,400 units Under FIFO, the oldest units are assumed to be sold and the newest units are assumed still in inventory. Thus, ending inventory under FIFO can be calculated as: 500 units x $10 900 units x 18 Ending inventory 3 5,999 16 299 $21,299