sunland company has a factory machine with a book value of $$85,700$ and a remaining useful life of $7$ years. It can be sold for $$25,900.$ A new machine is available at a cost of $$420,000.$ This machine will have a $7-$year useful life with no salvage value. The new machine will lower annual variable manufacturing costs from $$594,400$ to $$522,800.$ Prepare an analysis showing whether the old machine should be retained or replaced.