A manufacturing company is considering investing in a new cutting machine that will cost $140,000 and has an annual maintenance cost of $15,000. There is also an additional overhauling cost of $30,000 for the equipment at the end of every four years. If the equipment will last for a total of 4 years under these conditions and the costs do not change, what is the net present worth (NPW) of this investment at an interest rate of 11%?