Project S costs $2,467 up front, and its expected net cash inflows are $813 per year for 7 years (with the first inflow occurring one year from today). If the WACC is 14%, the project's NPV is $_________.

Round your answer to 2 decimal places (example: if your answer is 12.3456, you should enter 12.35). Negative figures should be preceded by a negative sign.