Periodic inventory by three methods

Dymac Appliances uses the periodic inventory system. Details regarding the inventory of appliances at January $1,$ purchases invoices during the next $12$ months, and the inventory count at December $31$ are summarized as follows:

$2.$DETERMINE THE COST OF THE INVENTORY ON DECEMBER $31$ BY LAST IN FIRST OUT METHOD

Following: Model, Quantity, Unit Cost, Total cost

$3.$ DETERMINE THE COST OF THE INVENTORY ON DECEMBER $31$ by the Weighted average cost method. Following: Model, Quantity, Unit Cost and total cost