help!!

Vaughn Manufacturing is considering the replacement of a piece of equipment with a newer model. The following data has been collected: If the old equipment is replaced now, it can be sold for $70000. Both the old equipment's remaining useful life and the new equipment's useful life is 4 years. Both assets have a $0 end-of-life salvage value. The net advantage (disadvantage) of replacing the old equipment with the new equipment is $(62000) $1180002 $70000 5(78000)