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0 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 30 units for $50 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 20 units @ $20.00 cost 34 units@ $30.00 cost 30 units @ $36.00 cost Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. (Round cost per units to 2 decimal places.) Weighted average-Periodic Goods Available for Sale Cost of Goods Sold Ending Inventory Average Cost per unit of units sold Cost per Unit #of units in ending inventory Ending Average Cost per unit Inventory Purchases December 7 $ 0:00 December 14 December 21 Total of units Cost of Goods Available for Sale S Cost of Goods Sold S 0.00