Ferris Company began January with 8,000 units of its principal product. The cost of each unit is $7. Merchandise transactions for the month of January are as follows: Purchases Unit Cost. $ 8 Date of Purchase Jan. 10 Jan. 18 Totals Units 6,000 B,000 14,000 Total Cost $ 48,000 72,000 120,000 Includes purchase price and cost of freight Sales Date of Sale Jan. 5 Jan. 12 Jan. 20 Total Units 4,000 2,000 5,000 11,000 11,000 units were on hand at the end of the month. 5. Calculate January's ending Inventory and cost of goods sold for the month using Average cost, perpetual system. (Round average cost per unit to 4 decimal places. Enter sales with a negative sign.) Perpetual Average Inventory on hand Cost of Goods Sold of units Inventory of units Avg.Cost Cost of unit Value sold per unit Goods Sold Cost per $ 0 0 0 0 0 0 0 Beginning Inventory Sale - January 5 Subtotal Average Cost Purchase - January 10 Subtotal Average Cost Sale - January 12 Subtotal Average Cost Purchase - January 18 Subtotal Average Cost Sale - January 20 Total 0 0 0 0 0 0 0 0 $ 0 0 $