I don’t think you can do such a thing. I have explained in my previous comments why. You should just know figure 9 necessarily does not relate to the table 2, it might be referring to figure 11. That’s all I can tell.
If you are attributing figure 9 to figure 11 (and not to table 2), then you can assume that FWM power is -100 dBm for “input power = 0 dBm”. In this case, you are not assuming 0 dBm = -100 dBm.