Calculate a) cost of goods sold, b) ending inventory, and c) gross margin fc methods and using perpetual inventory updating. Provide calculations for w answers to the nearest dollar amount. Number of Units Unit Cost Sales Beginning Inventory 260 $110 Sold 160 $150 Purchased 500 113 Sold 400 152 Purchased 400 120 Sold 370 184 Ending Inventory 230 Cost of Goode Purchased Unit Cost Total Cost AVG (perpetual) Inventory Cost of Goods Sold units Unit Cost units Total Cost Beginning Sale Com of Inventory Romaining units Unit Cost Total Cost X X X x x 160 110 X X Purchase 500 113 56,500 400 X 113 X Sale X 0 0 0 X X X 400 120 48,000 Purchase Sale 370 x X 118 x x 104,500 Total Purchases Total COGS Gross Margin, AVG perpetual Sales X X COGS X Gross Margin