4. Wishbone Corp. is considering investing in a project with a projected life of 4 years. The project would require a $60,000 initial investment in machinery, and the machinery is considered to be in the 3-year MACRS category. The machinery is expected to be sold for $5,000 at the end of the project. The company has a 40% tax rate. The project is expected to bring $35,000 in incremental annual revenues and $10,000 incremental annual expenses for each of the 4 years. A $5,000 additional (one-time) investment in net working capital will be required, which will be recouped at the end of the project. Wishbone considers a WACC of 15% to be appropriate for this project. What is the NPV of this project? (You can do this by hand or in Excel. If you do the problem in Excel, print out and attach your spreadsheet.)