Pearl Industries uses a periodic inventory system and reports the following for the month of June. Date Explanation Units Unit Cost Total Cost June 1 Inventory 130 $4 $ 520 12 Purchases 520 6 3,120 23 Purchases 325 8 2,600 30 Inventory 305 (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 O decimal places, e.g. 125.) FIFO LIFO Average-Cost The cost of the ending inventory $ The cost of goods sold $ $ $