Required information [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 $35 each. Purchases on Decenber 710 units e $21.00 cost Purchases on Decenber 1420 units $27.00 cost Purchases on Decenber 2115 units $29.00 cost Of the units sold, 8 are from the December 7 purchase and 7 are from the December 14 purchase. Determine the costs assigned to ending inventory when costs are assigned based on specific identification