Apnea Video Rental Store is considering the purchase of an almost new minivan to deliver and pick up video tapes from customers. The minivan will cost $120,000 and is expected to last 10 years. However, the minivan's engine will need to be repaired at a cost of $50,000 at the end of year 4. In addition, purchasing this minivan would require an immediate investment of $40,000 in working capital which would be released for investment elsewhere at the end of the 10 years. The minivan is expected to have a $20,000 salvage value at the end of 10 years. This delivery service is expected to generate net cash inflows of $60,000 per year in each of the 10 years. Apnea has a cost of capital of 20% and an income tax rate of 40%. 

Calculate the net present value (NPV) of this investment opportunity. If your answer is negative, place a minus sign in front of your answer with no spaces in between (e.g., -1234). Do not use decimals in your answer.