Pronghorn Corp uses a periodic inventory system and reports the following for the month of June. Date Explanation Units Unit Cost Total Cost June 1 Inventory 120 $5 $ 600 12 Purchases 320 6 1,920 23 Purchases 200 7 1,400 30 Inventory 240 (a1) Your answer is correct. Calculate weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost (a2) eTextbook and Media Your answer is incorrect. 6.125 Attempts: 2 of 3 used Compute the cost of the ending inventory and the cost of goods sold under FIFO, LIFO, and average-cost. (Round answers to 0 decimal places, e.g. 125.) The cost of the ending inventory The cost of goods sold FIFO LIFO Average-cost