Exercise 23-10 Keep or replace LO P5Xinhong Company is considering replacing one of its manufacturing machines. The machine has a book value of $35,000 and a remaining useful life of four years, at which time its salvage value will be zero. It has a current market value of $45,000. Variable manufacturing costs are $33,800 per year for this machine. Information on two alternative replacement machines follows. Alternative A Alternative BCost$124,000 $115,000 Variable manufacturing costs per year 22,100 10,700 Calculate the total change in net income if Alternative A, B is adopted. Should Xinhong keep or replace its manufacturing machine