Use the following information for questions 9 through 12. Transactions for the month of June were: Purchases Sales June 1 (balance) 1,600 @ $3.20 June 2 1,200 @ $5.50 3 4,400 @ 3.10 6 3,200 @ 5.50 7 2,400 @ 3.30 9 2,000 @ 5.50 15 3,600 @ 3.40 10 800 @ 6.00 22 1,000 @ 3.50 18 2,800 @ 6.00 25 400 @ 6.00 9. Assuming that perpetual inventory records are kept in units only, the ending inventory on a LIFO basis is a. $8,220. b. $8,320. c. $8,580. d. $8,940.