Use the following information for the Quick Study below. (Algo) (11-14) Skip to question [The following information applies to the questions displayed below.] Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Monson uses a perpetual inventory system. Also, on December 15, Monson sells 15 units for $23 each. Purchases on December 7 10 units @ $9.00 cost Purchases on December 14 20 units @ $15.00 cost Purchases on December 21 15 units @ $17.00 cost