Concord Corporation Inc. had a beginning inventory of 100 units of Product RST at a cost of $6 per unit. During the year, purchases were:

Feb. 20		585 units		at		$7		Aug. 12		405 units		at		$9
May 5		495 units		at		$8		Dec. 8		100 units		at		$10

Concord Corporation uses a periodic inventory system. Sales totaled 1,570 units. Determine the ending inventory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). Prove the accuracy of the cost of goods sold under the FIFO and LIFO methods. (Round per unit cost to 3 decimal places, e.g. 15.647 and final answers to 0 decimal places, e.g. 5,125.)