Top-Ten Inc. is considering replacing its existing machine that is used to produce musical CDs. This existing machine was purchase 3 years ago at a base price of $50. Installation costs at the time for the machine were $2. The existing machine is considered a 3-year class for MACRS. The existing machine can be sold today for $40 and for $10 in 3 years. The new machine has a purchase price of $90 and is also considered a 3-year class