A company just starting business made the following three inventory purchases in February Feb. 1 Feb. 10 Feb 28 290 units 410 units 90 units $1400 2800 800 $5000 On Feb 15, there were 340 units sold. The company uses a perpetual inventory system. Using the weighted average cost formula, the balance in ending inventory on February 28 is O $5000 $3259 $2960 $2040