Calculate the NPV based upon the following facts:

Bob has just completed the development of a better face shield for

health workers. The new product is expected to produce annual

revenues of $230,000. Bob requires an investment in an advanced

3D Printer costing $30,000. The project has an expected life of 5

years. The 3D printer will have a $20,000 salvage value at the end

of 5 years. Working capital is expected to increase by $80,000

which Bob will recover at the end of the products life cycle. Annual

operating expenses are estimated at $200,000. The required rate of

return is 4%.