Calculate the NPV for the following facts:

Bob designed a face shield for front line health workers. The projects life cycle is five years. He will invest $60,000 in a 3D printer with a salvage value of $6,000. He anticipates an additional increase in working capital of $50,000 which he will recover at the end of the project. The projected annual revenues are $150,000 with annual operating expenses of $130,000. The required rate of return is 10%.