Required information Use the following information for the Quick Study below. 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. Purchases on December 7 15 units @ $18.00 cost Purchases on December 14 29 units @ $27.00 cost Purchases on December 21 25 units @ $32.00 cost QS 5-12 Perpetual: Inventory costing with weighted average LO P1 Required: Monson sells 25 units for $45 each on December 15. Monson uses a perpetual inventory system. Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. (Round your per unit costs to 2 decimal places.)