Current Attempt in Progress Grouper-Mart Centre Inc opened for business 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 Units Unit Cost Sales Unit Price Date Units May 1 120 $100 3 80 $258 CO 8 100 110 13 80 285 15 60 115 20 60 310 27 40 337 (a) 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, es. 5.75) FIFO Average Cost of Goods Sold Ending Inventory $ $