Pristine Products is considering the purchase of a new machine. The estimated cost of the machine is $45,000. The machine is expected to generate annual cash inflows for the next four years as follows: Year Annual cash flow $10,000 15,000 25,000 27,000 The machine is not expected to have a residual value at the end of its useful life. If the company uses a discount rate of 15%, what is the expected net present value of the machine? (ignore taxes) 56,914 56,253 $(2,757) $4200