Fulbright Corp. uses the periodic inventory system. During its first year of operations, Fulbright 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. 9. Ending inventory using the average cost method is: A. $ 650. B. $1,000. C. $ 707. D. $ 600