A commercial furnace with a book value of $45,470 has an estimated remaining life of 5 years. A proposal is made to sell the oven for $14,210 and replace it with a new oven that costs $81,190. The new machine has a useful life of 5 years with no residual value. The new machine would reduce annual maintenance costs by $15,610.

Provide a differential analysis on the proposal to replace the commercial oven.