Current Attempt in Progress Kingbird Company has 2 bactory machine with a book value of $164,000 and a remaining use ful hife of 4 years. A new machine is avalabie at a cost of $243,500. This machine will have a 4 year useful life with no salvage value. The new machine will lower annuat. variable manuracturing costs trom $600,000 to $503,000. Prepare an analysis that shows whether Kingbird shouid retain or replace the old machine. if an amount retuces the net inceme then enter with a negatlve signipregeding the namber or porenthesis eg 15,000,(15,000N