Inventory Costing Methods-Perpetual Method Artow company is a tefailer that uses the perpetual inventory system. Calculate the inwentory cost of item A on August 11 (afier che salel using (a) frst-in, first-out, (b) lastin, frst-out and (c) the weighted-average cost methods. De not round untilyour final anower. Hound your finat answern to the nearest dolknt