Trey Monson starts a merchandising business on December 1 and enters into the following three inventory purchases. Monson uses a periodic inventory system. Also, on December 15 . Monson sells 15 units for $20 each. PurchasesonDecenber7PurchasesonDecember14PurchasesonDecember2110units&$6cost20units&$12cost15units&$14cost QS 5-17A (Static) Periodic: Inventory costing with weighted average LO P3 Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. (Round cost per units to 2 decimal ploces.)