not sure if its currect

Rory Company has a machine with a book value of $117.000 and a remaining five year useful life. A new machine is available at a cost of $13,500 and Rory can also receive $80,000 for trading in its old machine. The new machine will reduce variable manufacturing costs by $23.500 per year over its five year useful life. Calculate the incremental Income (Any losses or outflows should be entered with a minus sign.) Incremental income From Replacing Machine Cash received from trade in of old machine $ Cost of new machine 80,000/ 567.500 Incremental income (incremental cost) 047.500 Should the machine be replaced