Marian Plunket owns her own business and is considering an investment. If she undertakes the investment, it will pay $5,520 at the end of each of the next three years. The opportunity requires an initial investment of $1,380 plus an additional investment at the end of the second year $6,900. What is the NPV of this opportunity if the cost of capital is 2.1% per year? Should Marian take it?