Exercise 23-12 Keep or replace LO A1 Xinhong Company is considering replacing one of its manufacturing machines. The machine has a book value of $45,000 and a remaining useful life of 5 years, at which time its salvage value will be zero. It has a current market value of $52,000. Variable manufacturing costs are $36,000 per year for this machine. Information on two alternative replacement machines follows. Alternative A Alternative B Cost $ 115,000 $ 125,000 Variable manufacturing costs per year 19,000 15,000 Calculate the total change in net income if Alternative A, B is adopted. Should Xinhong keep or replace its manufacturing machine