NEED HELP!!

Calculate the project's NPV given: a. A required rate of return of 8 percent b. A required rate of return of 10 percent c. A required rate of return of 13 percent d. A required rate of return of 16 percent a. If the required rate of return is 8 percent, the project's NPV is $ (Round to the nearest dollar.) b. If the required rate of return is 10 percent, the project's NPV is $ (Round to the nearest dollar.) c. If the required rate of return is 13 percent, the project's NPV is $ (Round to the nearest dollar.) d. If the required rate of return is 16 percent, the project's NPV is $ (Round to the nearest dollar.)