all of the blue boxes marked need to be filled in, please help me

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 26 units for $25 each. 16 units @ $10.00 cost 33 units @ $15.00 cost Purchases on December 21 26 units @ $18.00 cost Purchases on December 7 Purchases on December 14 S 5-14 (Algo) Perpetual: Inventory costing with specific identification LO P1 f the units sold, 13 are from the December 7 purchase and 13 are from the December 14 purchase. Determine the costs assigned to me December 31 ending inventory when costs are assigned based on specific identification Inventory Balance Specific Identification--Perpetual Goods purchased Cost of Goods Sold w of Cost per Goods units Cost per Cost of Goods unit w of units purchased unit Sold Date Cost per Hot units Inventory Balance unit Sold December 7 16 at $ 10.00 160.00 33 at S 15.00 $ 495.00 ar at $ 15.00 December 14 Total December 14 $ 0.00 $ 0.00 December 15 $ 0.00 Total December 15 26 -18.88 0.00 $ 15.00 December 21 Totals