Inventory Costing Methods-Perpetual Method Fortune Stores uses the perpetual inventory system for its merchandise inventory. The April 1 inventory for one of the items in the merchandise imventory consisted of 120 units with a unit cost of $355. Transactions for this item during Aprit were as follows: Required a. Calculate the cost of goods soid and the ending inventory cost for the month of April using the weighted-average cost method. Do not round until your final answers. 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