please help!

Granfield Company has a plece of manufacturing equipment with a book value of $44,500 and a remaining useful life of four years. At the end of the four years. the equipment will have a zero-salvage value. Granfield can purchase new equipment for $147,000 and recetve $25,600 in return for trading in its current equipment. The current equipment has variable manufacturing costs of $48,000 per year. The new equipment will reduce variable manufacturing costs by $23,500 per year over its four-year life. The total increase or decrease in income by replacing the curtent equipment with the new equipment is: Multiple Choice $64.150 increase 577400 deciesse $27,400 increase $94,000 niciease \$mpor decrose