Petra Souvenirs plans to invest in a new souvenir boutique. Petra will invest $ 37,648. The total after tax cash flows are $30,891 for year 1, $27,904 for year 2, $19,486 for year 3 and $20,770 for year 4. The required rate of return on similar projects is 5.6 percent. Calculate the NPV of the project. Please do NOT include $ sign in your answer. Round up the answer to TWO decimal places.