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 Second purchase Sale 30,000 units @ $43 13,767 units @ $67 39,000 units @ $46 42,218 units @ $69 23,000 units @ $48 2,576 units @ $70 The firm uses the perpetual inventory system, and there are 33,439 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? b. What is the total cost of the ending inventory according to LIFO?