Kobe Company has a factory machine with a book value of $$90,000$ and a remaining useful life of $5$ years. It can be sold for $$30,000.$ A new machine is available at a cost of$$400,000.$ This machine will have a $5-$year useful life with no residual value. The new machine will lower annual variable manufacturing costs from $$600,000$ to $$500,000.$ Prepare an analysis showing whether the old machine should be retained or replaced.