Equipment Replacement. Maxwell Company has an opportunity to acquire a new machine to replace one of its present machines. The new machine would cost $95,000, have a five-year life, and have no estimated salvage value. Variable operating costs would be $90,000 per year. The present machine has a book value of $50,000 and a remaining life of five years. Its disposal value now is $5,000, but it will have no disposal value after five years. Variable operating costs are $120,000 per year. Determine, for the next five years, the relevant cost difference between keeping the old machine and buying the new one. (AICPA adapted