Chess Top uses the periodic inventory system. For the current month, the beginning inventory consisted of 360 units that cost $65 each. During the month, the company made two purchases: 540 units at $68 each and 270 units at $70 each. Chess Top also sold 900 units during the month. Using the average cost method, what is the amount of ending inventory? $60,786. $60,120. $18,900. $18,236