Inventory Costing Methods-Periodic Method Arrow Company is a retailer that uses the periodic inventory system August 1 Beginning inventory 80 units of Product A $1.600 total cost 5 Purchased 100 units of Product A $2,116 total cost 8 Purchased 200 units of Product A $4,416 total cost 11 Sold 170 units of Product A $4,800 total sale Calculate the August cost of goods sold and the ending inventory at August 31 using (a) first in, first-out (b) last in first-out, and (c) the weighted average cost methods. A. Do not round until your final answers. Round your final answers to the nearest dollar. A. First-in, first-out Ending Inventory $ Cost of Goods Sold $ B. Last-in, first-out Ending Inventory Cost of Goods Sold $ C. Weighted average cost Ending Inventory Cost of Goods Sold $ H