Andy and Wenzhen Corp. uses the periodic inventory system. During its first year of operations, Andy and Wenzhen made the following purchases (listed in chronological order of acquisition): 40 units at $100, 70 units at $80, 170 units at $60. Sales for the year totaled 270 units, leaving 10 units on hand at the end of the year. Ending inventory using the average cost method (rounded) is:

$1,000.

$600

$650.

$707