UIS. Machine A Machine B Purchase price $ 121, 090 $ 136, 000 Variable manufacturing costs per year 21, 000 15, 090 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 replaced, which new machine should Lopez purchase? Complete this question by entering your answers in the tabs below. Req A Req B Req C and D Compute the income increase or decrease from replacing the old machine with Machine A. (Amounts to be deducted should indicated with a minus sign.) Income Increase Machine A: Keep or Replace Analysis Keep Replace (Decrease) from Replacing Revenues Sale of existing machine Costs Purchase of new machine Variable manufacturing costs Income (loss) Req B >