Marian Plunket owns her own business and is considering an investment. If she undertakes the investment, it will pay $5,760 at the end of each of the next 3 years. The opportunity requires an initial investment of $1,440 plus an additional investment at the end of the second year of $7,200. What is the NPV of this opportunity if the interest rate is 1.6% per year? Should Marian take it?