Grouper Corp. uses a periodic inventory system and reports the following for the month of June. Date June 1 Units 122 488 Unit Cost $4 Explanation Inventory Purchases Purchases Inventory 12 Total Cost $ 488 2,928 2.440 6 23 30 8 305 285 (a) Compute the cost of the ending inventory and the cost of goods sold under FIFO, LIFO, and average-cost. (For calculation purposes, round average cost to 3 decimal places, e.g. 5.275. Round answers to 0 decimal places, e.g. 125.) FIFO LIFO Average-Cost The cost of the ending inventory The cost of goods sold $ $