Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Also, on December 15, Monson sells 25 units for $45 each. lequired: lonson sells 25 units for $45 each on December 15 . Monson uses a perpetual inventory system. Determine the costs assigned to the ecember 31 ending inventory when costs are assigned based on LIFO