Current Attempt in Progress Concord Company Inc had a beginning inventory of 88 units of Product RST at a cost of $7 per unit. During the year, purchases were: Concord Company uses a periodic inventory system. Sales totaled 1,320 units. Determine the ending inventory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). (For calculation purposes, round average cost to 2 decimal ploces, eg. 5.25. Round answers to 0 decimal places, eg. 125.)