Section 9:315.8 - Calculation of total child support obligation; worksheetA. The total child support obligation shall be determined by adding together the basic child support obligation amount, the net child care costs, the cost of health insurance premiums, extraordinary medical expenses, and other extraordinary expenses.B. A deduction, if any, for income of the child shall then be subtracted from the amount calculated in Subsection A. The remaining amount is the total child support obligation.C. Each party's share of the total child support obligation shall then be determined by multiplying his or her percentage share of combined adjusted gross income times the total child support obligation.D. The party without legal custody or nondomiciliary party shall owe his or her total child support obligation as a money judgment of child support to the custodial or domiciliary party, minus any court-ordered direct payments made on behalf of the child for work-related net child care costs, health insurance premiums, extraordinary medical expenses, or extraordinary expenses provided as adjustments to the schedule.E. "Joint Custody" means a joint custody order that is not shared custody as defined in R.S. 9:315.9. (1) In cases of joint custody, the court shall consider the period of time spent by the child with the nondomiciliary party as a basis for adjustment to the amount of child support to be paid during that period of time.(2) If under a joint custody order, the person ordered to pay child support has physical custody of the child for more than seventy- three days, the court may order a credit to the child support obligation. A day for the purposes of this Paragraph shall be determined by the court; however, in no instance shall less than four hours of physical custody of the child constitute a day.(3) In determining the amount of credit to be given, the court shall consider the following: (a) The amount of time the child spends with the person to whom the credit would be applied. The court shall include in such consideration the continuing expenses of the domiciliary party.(b) The increase in financial burden placed on the person to whom the credit would be applied and the decrease in financial burden on the person receiving child support.(c) The best interests of the child and what is equitable between the parties.(4) The burden of proof is on the person seeking the credit pursuant to this Subsection.(5) Worksheet A reproduced in R.S. 9:315.20, or a substantially similar form adopted by local court rule, shall be used to determine child support in accordance with this Subsection.Acts 1989, 2nd Ex. Sess., No. 9, §1, eff. Oct. 1, 1989; Acts 1990, No. 757, §1; Acts 2001, No. 1082, §1; Acts 2004, No. 756, §1.Acts 1989, 2nd Ex. Sess., No. 9, §1, eff. 10/1/1989; Acts 1990, No. 757, §1; Acts 2001, No. 1082, §1; Acts 2004, No. 756, §1.