The following units of an item were available for sale during the year: Beginning inventory Sale First purchase Sale Second purchase Sale The firm uses the perpetual inventory system, and there are 10 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? 20 units at $41 17 units at $59 37 units at $43 5 units at $60 10 units at $44 35 units at $60 b. What is the total cost of the ending inventory according to LIFO