Sheridan Company has a factory machine with a book value of $150,000 and a remaining useful life of 4 years. A new machine is available at a cost of $245,000. This machine will have a 4-year useful life with no salvage value. The new machine will lower annual variable manufacturing costs from $590,000 to $490,000. Prepare an analysis that shows whether Sheridan should retain or replace the old machine. (If an amount reduces the net income then enter with a negative sign preceding the number or parenthesis, e.g. -15,000, (15,000).) Keep Equipment $ $ Variable costs New machine cost $ The old factory machine should be Replace Equipment $ $ $ Net Income Increase (Decrease)