(c) Applicability and required findings.
(2)
(E) Include written findings of fact as to whether one or more of the deviations allowed under this Code section are applicable, and if one or more such deviations are applicable as determined by the court or the jury, the written findings of fact shall further set forth:
(i) The reasons the court or the jury deviated from the presumptive amount of child support;
(ii) The amount of child support that would have been required under this Code section if the presumptive amount of child support had not been rebutted; and
(iii) A finding that states how the court’s or the jury’s application of the child support guidelines would be unjust or inappropriate considering the relative ability of each parent to provide support and how the best interest of the child who is subject to the child support determination is served by deviation from the presumptive amount of child support;