Child support and rental income

[Hiro Kitagawa]

I'm not sure how suited this question is for BP, but I'd like to mention if anyone knows.

I currently pay child support bi-weekly.  Recently (April '17) I began leasing the first rental property for $1,600/mo, and the mother of the child stated that this would be an increase in income and therefore the support amount should increase.

With that said, which would be considered an increase in income - gross or net?

Gross income would be $1,600/mo while net would be approx. $200/mo.  If the child support court bases the calculation of off "gross" rental income....it would be seen as almost $20K raise in income, which in reality that is not the case.

Again I'm aware this is more in the realm of family law professionals, but I was curious if anyone here has any experience.

Thank you as always!