RST Ltd is considering purchasing a new machine. The purchase price of the machine is 75,000. It is expected that the machine will generate profits over the next 4 years as follows: Year 1 5,000 Year 2 20,000 Year 3 30,000 Year 4 10,000 The machine will be sold at the end of the 4 years for 15,000. The above figures include a depreciation charge of 15,000 per year. RST Ltd uses a 10% discount rate. What will be the net present value (NPV) for the project