Inventory Costing Methods-Periodic Method The Lippert Company uses the periodic inventory system. The following July data are for an item in Lippert's inventory: Juty 1 Beginning inventory 30 units 9 per unit 10 Purchasecd 15 Sold 25 Purchased 50 units 10 per unit 0 units 25 units 11perunit Calculate the cost of goods sold for July and ending inventory at July 31 using (a) first-in, first-out, (b) last-in, first-out, and (c) the weighted-average cost methods. Round your final answers to the nearest dollar. A. First-in, First-out: Ending Inventory 570 Cost of Goods Sold B. Last-in, rst-out s 578 Ending Inventory Cost of Gds Solo C. Weighted-average cost: Ending Inventary 0 X Cost of Gods Sold