Duludlu Print Item FIFO and LIFO Costs Under Perpetual Inventory System The following units of an item were available for sale during the year: Beginning inventory Sale First purchase Sale 41 units at $50 6 units at $78 23 units at $53 49 units at $80 14 units at $56 Second purchase Sale 17 units at $82 The firm uses the perpetual inventory system, and there are 6 units of the item on hand at the end of the year. a. What is the total cost of the ending inventory according to FIFO? $ 336 b. What is the total cost of the ending inventory according to LIFO