QS 6-11 Perpetual: Inventory costing with LIFO LO P1

Trey Monson starts a merchandising business on December 1 and enters into three inventory purchases:

Purchases on December 7	16 units @	$	10.00	cost
Purchases on December 14	33 units @	$	15.00	cost
Purchases on December 21	26 units @	$	18.00	cost

Required:

Monson sells 26 units for $25 each on December 15. Monson uses a perpetual inventory system. Determine the costs assigned to the December 31 ending inventory when costs are assigned based on LIFO.