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 $36 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 10units@$22.00cost20units@$28.00cost15units@$30.00cost SS 5-13 (Algo) Perpetual: Inventory costing with weighted average LO P1 etermine the costs assigned to ending inventory when costs are assigned based on the weighted average method. lote: Round your per unit costs to 2 decimal places. Answer is comnlete hut not entirelv correct