Calculate a) cost of goods sold, b) ending inventory, and c) gross margi Provide calculations for last-in, first-out (LIFO). Number of Units Unit Cost Sales Beginning inventory 250 $100 Sold 160 $140 Purchased 520 103 Sold 400 142 Purchased 410 110 Sold 370 174 Ending inventory 250 Cost of Goods Purchased LITO (perpetual) Inventory Cast of Goods Sold Number of Units Unit Cow caut et lavendan, Alemaning Number el bata Unit Cost Total Cost Number of Unite Total Cost Unit Cost Total Cust beginning Sale Purchase I 0 Sale o o a I Purchase a Sale I o Total COGS Gross Margin, LIFO perpetual Sales cods Gross Margin