Use the following information for the month of May:

May 1 Beginning inventory 40 units @ $16

7 Purchases 70 units @ $20

18 Sales 25 units

22 Purchases 40 units @ $22

29 Sales 20 units

Assuming that a LIFO perpetual inventory system is used, what is ending inventory?

$1,880

$1,980

$2,080

$2,030

$1,830