Required information [The following information applies to the questions displayed below.) 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 28 units for $35 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 18 units $14.00 cost 33 units 28 units $21.00 cost $25.00 cost Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. Note: Round cost per units to 2 decimal places. Weighted average-Periodic Purchases: December 7 December 14 December 21 Total Goods Available for Sale Cost of Goods Sold Cost per unit Cost of Goods Available for Sale Number of units sold Average Cost per Unit Cost of Goods Sold Number of units Ending Inventory Number of units in ending Inventory Average Cost per unit Ending Inventory