please help with following problem , specifically how to compute variable costs. thanks in advance

Lopez Company is considering replacing one of its old manufacturing machines. The old machine has a book value of $50.000 and a remathing usefut tife of four years, ti can be sold riow for $60,000. Variable manufacturing costs are $46,000 peryear for this old machine. Information on two altemative replacement machines follows. The expected useful life of each replacement machine is four years. (a) Compute the income increase or decrease from replacing the old machine with Machine A. (b) Compute the income increase or decrease from replacing the old machine with Machine B. (c) Should Lopez keep or replace its old machine? (d) If the machine should be reploced, which new machine should Lopez purchase? Answer is complete but not entirely correct. Complete this question by entering your answers in the tabs below. Compute the income increase or decrease from replacing the old machine with Machine A. Note: Amounts to be dedacted should be indicated with a minus sion. Lopez Company is considering replacing one of its old manufacturing machines. The old machine has a book value of $50,000 and a remaining usefut life of four years. It can be sold now for $60,000. Variable manufacturing costs are $46,000 per year for this old machine. Information on two altegnative replacement machines follows. The expected useful life of each replacement machine is four years: (o) Compute the income increose or decreose from replacing the old machine with Machine A. (b) Compute the income increase or decrease from replacing the old machine with Machine B. (c) Should Lopez keep or replace its old machine? (d) If the mochine should be replaced, which new machine should Lopez purchase? 8 Answer is completo but not entirely correct. Complete this question by entering your anwwers in the tabs below. Compute the income increase or decrease from replacing the old machine with Machine B. Note: Amounts to be deducted should be indicated with o ininus slgn