5 E9-19 (Gross Profit Method) Presented below is information related to Jerrold Corporation for the cur- rent year. Beginning inventory 600,000 Purchases 1,500,000 Total goods available for sale 2,100,000 Sales 2,300,000 Instructions Compute the ending inventory, assuming that (a) gross profit is 40% of sales, (b) gross profit is 60% of cost, (c) gross profit is 35% of sales, and (d) gross profit is 25% of cost