I need to know the detailed answer including the NPV and the calculation of cash-flow schedule for year 0 to the end (i.e. CF0, CF1, ) for the following question. Also, it would be great if you could tell me how to get it in Excel (it seems that the regular NPV function does not give the correct answer).

Mity-Lite, Inc. a manufacturer of plastic tables for institutional use is considering a capital spending program involving annual expenditures of $100,000 for each of the next 5 years. The firm estimates its annual profit of $100,000 would increase by fifty percent when the capital program is completed. Assuming the firm has a 20-year life and the appropriate interest rate is 12 percent, should the capital spending program be implemented?