Checkers uses the periodic inventory system. For the current month, the beginning inventory consisted of 2,400 units that cost S12 each. During the month, the company made two purchases: 1,000 units at $13 each and 4,000 units at $13 50 each Checkers also sold 4,300 units during the montm using the average cost method, what is the amount ot cost of goods sold for the month? S55,685_ S57,900_ S53,950_ S55,900_