Inventory Costing Methods-Perpetual Method Archer Company is a retailer that uses the perpetual inventory system. Calculate the inventory cost of item A an August 11 (after the saie) using (a) first-in. first-out, (b) last-in, first-out, and (c) the weighted-average cost methods. Do not round until your final answers. Round your finsl answers to the nearest dollar. A. Firstin, tirstout Ending inventory ii Lase in firstout Ending imventory c. Wechted weroge Endingimentary