Use the following information to answer questions #19 through #21:4 April 1 Inventory 200 units @ $3.00 6 Purchase 300 units @ $3.30 # Purchase 100 units @ $3.60 # Purchase 200 units @ $3.90 # Purchase 40 units @ $4.20 Sale 620 units A periodic inventory system is used. 2 I et 19. Using LIFO, the cost assigned to ending inventory is a $666. b. $870. c. $2,232. d. $2,028. 20. Using FIFO, the cost assigned to ending inventory is a $2,028. b. $870.- c. $666. d. 2,232. 21. Using LIFO, cost of goods sold ist a. $2,232. b. $2,028. c. $666. d. $870. e