Required information Saved [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 perpetual inventory system. Also, on December 15, Monson sells 29 units for $50 each. Purchases on December 7 Purchases on December 14 Purchases on December 21 19 units $20.00 cost 36 units $30.00 cost 29 units $36.00 cost 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.) December 7 December 14 Weighted Average-Perpetual; Goods purchased Date # of # of units Cost per unit Inventory Value units sold unit Cost of Goods Sold Cost per Cost of Goods Sold Inventory Balance # of units Cost per unit- Inventory Balance 19 at $ 20.00 $ 380.00 36 at $ 30.00 - $ 1,080.00 Average cost December 14 December 15 29 at $ 36.00 $ 1,044.00 December 21 Average cost December 21 Totals at $ at 30.00 $ 0.00 0.00 at at $ 36.00- 0 $ 0.00