An investment requires an initial cash outflow of $3,600, and it will bring in cash inflows of $3,500, $1,100,$2,300,$2,400, for the next four years, respectively. What is the internal rate of return (IRR) of this project? (Format answer to percent and rounded to two decimals, enter your answers without \%, for example, for answer 0.1243, enter 12.43 only)