Fossa Road Paving Company is considering an investment in a curb-forming machine. The machine will cost $240,000, will last 10 years, and will have a $40,000 salvage value at the end of 10 years. The machine is expected to generate net cash inflows of $60,000 per year in each of the 10 years. Fossa's discount rate is 18%. What is the net present value of this machine?