A court that conducts a hearing pursuant to section 3119.66 of the Revised Code shall do both of the following:
(A) If the court determines at the hearing that the revised child support amount calculated by the child support enforcement agency is the appropriate amount, issue a revised court child support order requiring the obligor to pay the revised amount;
(B) If the court determines that the revised child support amount calculated by the agency is not the appropriate amount, determine the appropriate child support amount and, if necessary, issue a revised court child support order requiring the obligor to pay the child support amount determined by the court.