Problem 6-3A Concord-Mart Centre Inc. began operations on May 1 and uses a perpetual inventory system. During May, the company had the following purchases and sales for one of its products: Purchases Sales Date Units Unit Cost Units Unit Price May 1 120 $102 3 80 $252 8 100 112 13 80 279 15 60 116 20 60 305 27 40 329 Determine the cost of goods sold and cost of ending inventory using (1) FIFO and (2) average cost. (Round Average answers to 2 decimal places, e.g. 5.75.) FIFO Average Cost of Goods Sold $ Ending Inventory $ $