x company is considering replacing one of its machines in order to save operating costs. Operating costs with the current machine are $68000 per tear;operating costs with the new machine are expected to be $50000 per year. The new machine will cost $71,000 and will last for 4 years, at which time it can be sold for $5000. The current machine will also last for 4 more years but will have zero salvage value. Its current disposal value is $4000. Assuming a discount rate of 8%, what is the met present value of replacing the current machine?