The following units of an item were available for sale during the year: Beginning inventory Sale First purchase Sale Second purchase Sale 22 units @ $49 15 units @ $69 37 units @ $51 24 units @ $71 27 units @ $52 24 units @ $71 The firm uses the perpetual inventory system, and there are 23 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?