Inverness Company is considering the replacement of a machine that is presently used in production. The following data are available: Old Machine New Machine Original cost $57,000 $35,000 Useful life in years 17 5 Current age in years 12 0 Book value $39,000 - Disposal value now $8,000 - Disposal value in 5 years 0 0 Annual cash operating costs $7,000 $4,000 Adding all five years together, what is the difference in total relevant costs between the old machine and the new machine