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 fin answers to the nearest dollar. A. First-in, First-out: Ending Inventory $ 0 Cost of Goods Sold: $ 0 Last-in, first-out Ending Inventory # 0 Cost of Goods Sold $ 0