Inventory Costing Methods-Perpetual Method Archer Company is a retailer that uses the perpetual inventory system. August 1 Beginning inventory 150 units of Product A @ $1,700 total cost 5 Purchased 170 units of Product A @ $2,716 total cost 8 Purchased 270 units of Product A @ $5,716 total cost 11 Sold 230 units of Product A Calculate the inventory cost of item A on August 11(after the sale) using (a) first-in, first-out, (b) last-in, first-out, and (c) the weighted-average cost methods