tatra electrician company specializes in rewiring historic houses. tatra electrician company recently purchased a new wire-pulling device that will decrease the time to complete each job and increase total revenues. the device will cost $4,375 and will increase net cash flows by $1,750 per year. the new device has a useful life of 7 years and a residual value of $250. what is the payback period for the new wire-pulling device?
