Granfield Company has a piece of manufacturing equipment with a book value of $45,000 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 $150,000 and receive $26,000 in return for trading in its current equipment. The current equipment has variable manufacturing costs of $49,000 per year. The new equipment will reduce variable manufacturing costs by $24,000 per year over its four-year life. The total increase or decrease in income by replacing the current equipment with the new equipment is: Multiple Choice $28,000 decrease $96,000 increase $17,000 decrease $65,500 increase. $28,000 increase