Inventory Costing Methods - Periodic Method Fortune Stores uses the periodic inventory. system for its merchandise inventory. The April 1 inventory for one of the items in the merchandise inventory consisted of 120 units with a unit cost of $325. Transactions for this item during April were as follows: Required a. Calculate the cost of goods sold and the ending inventory cost for the month of April using the weighted-average cost method. Round your final answers to the nearest dollar. b. Calculate the cost of goods sold and the ending inventory cost for the month of April using the first-in, first-out method. c. Calculate the cost of goods sold and the ending inventory cost for the month of April using the last-in. first-out method. a. Weighted Average Ending Inventory $ Cost of goods Sold $ b. First-in, First-out: Ending Inventory $ Cost of Goods Sold: $ c. Last-in, first-out: Ending Inventory $ Cost of Goods Sold: $