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

[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 $28 each. Purchases on December 710 units e $14.00cost Purchases on December 1420 unfte $20.00 cost Purchases on December 2115 unita e $22.00 cost