Find the net present value of a project that has cash flows of -$12,000 in Year 1, +$5000

in Years 2 and 3, -$2000 in Year 4, and +$6000 in Years 5 and 6. Use an interest rate of

12%. Find the interest rate that gives a net present value of zero.

I calculated PV value and it came down to $2003. Now how to calculate NPV from here and how to find interest rate that gives a net present value of zero