support, we will reverse only for an abuse of discretion. Holtzleiter v. Holtzleiter, 944 N.E.2d 502, 505 (Ind.Ct.App.2011). An abuse of discretion occurs only when the decision is clearly against the logic and effect of the facts and circumstances before the court, including any reasonable inferences that may be drawn therefrom. Id. This Court has acknowledged that “the importance of first-person observation and preventing disruption to the family setting justifies deference to the trial court.” Id. In relevant part, Indiana Code section 31-16-8-1(1) provides that a child support order may be modified only “upon a showing of changed circumstances so substan tial and continuing as to make the terms unreasonable[.]” See also Vagenas v. Vagenas, 879 N.E.2d 1155, 1159 (Ind.Ct.App.2008) (<HOLDING>). The party seeking the modification bears the
holding that it was error for the trial court to determine the issue of child support without a child support guidelines worksheet holding that postsecondary education support orders are modified pursuant to the statute governing child support modification holding that where payments are made on past due support they must first be applied to  current child support installments due then to accrued and outstanding interest on  delinquent child support obligations and finally to the principal amount due on unpaid child support holding that pursuant to prwora and iirira congress had evinced its intention to occupy the field of alien eligibility for postsecondary education and invalidating on federal preemption grounds section 8 of californias proposition 187 which denied public postsecondary education to immigrants not lawfully present holding that the trial court abused its discretion in failing to award the increased child support retroactive to the date of the petition for modification because the childs increased need for support and the former husbands ability to pay the increased child support existed at the time the former wifes petition for modification was filed