A child has a basic right to receive support. The parents obligation to provide such support cannot be removed except by a termination of parental rights, i.e. adoption. The rules governing child support in Alabama can be found in the Alabama Child Support Guidelines, Alabama Rules of Judicial Administration, Rule 32.
The calculation of the support figure from the guidelines above is deemed correct unless shown otherwise. The guidelines are not intended to be carved in stone. They are "guidelines" only. They are meant as a map to assist parties, lawyers, and judges in making more consistent awards of child support.