Inventory Costing Methods - Perpetual Method Fortupe Stores uses the perpetual inventory system for its merchandise inventory. The April 1 inventory for one of the ifems in the merchandise inventory consisted of 120 units with a unit cost of 5325 . Transactions for this item during April were as follows Required a. Cakulate the cost of guods sold and the ending inventory cost for the month of Aprit using the we ghted-average cost method. b. Calculate the cost of goods sold and the ending inventory cost for the month of Apra using the first in, first-out method. e. Eafeutate the cost of goods sold and the ending inventory cost for the montr of Aprit using the tast in, first out metrod