Trey Monson starts a merchandising business on December-1 and enters into the following three inventory purchases Monson uses a perpetual inveritory system. Also, on December 15 , Monson sels 15 units for $20 each. Archases on Deceeber? 10 units ess cost Purthates on Decenther 14 20 units ei 512 cont is units e sy ist QS 5-13 (Static) Perpetual: Inventory costing with weighted average LO P1 Determine the costs assigned to ending inventoyy when costs are assigned based an the weighted average method. (Round your per unit costs to 2 decimal places.) 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.)