A retailer made the following inventory purchases in February. Purchased 225 units at $7 each on Feb. 1. Purchased 400 units at $8 each on Feb. 10. Purchased 100 units at $9 each on Feb. 28. On Feb. 15, there were 300 units sold. The retailer used a perpetual inventory system. Using the weighted average cost formula, the cost of goods sold for the February 15 sale was: Select one: a. $2,292 b. $2,348 c. $3,825 d. $3,383 e. $2,100