Economic Metrics (ROI, PP, NPW)
Based on the first and second number it seems that your investment has more costs than benefits, so if all those flows were to be brought to present value, the project will lose 200 Million. This is consistent with the fact that it has a negative return of $60\%$ on average. However, the pay-back period makes no sense. I think that you probably just applied a formula and since on average you are losing money every period ($60\%$), being in this situation one less year is considered by the formula as making that money (instead of loosing it), hence "the time that will take you to pay-back the investment" is -4 years. You probably don't want to present that number, since this is not its natural interpretation, and instead say that the project is never paid back.