Inventory Costing Methods-Perpetual Method Spangler Company is a retailer that uses the perpetual inventory system. March 1 Beginning inventory 1,500 units of Product MO $2,990 total cost 6 Purchased 1.600 units of Product M 34,000 total cost 10 Purchased 1,900 units of Product M $3,400 total cost 15 Sold 1,580 units of Product M Calculate the inventory cost of item M on March 15 (after the sale) 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 final answers to the nearest dollar. A First in, first-out Ending Inventory Last-in, first-out Ending Inventory C. Weighted average Ending Inventory 5 B