Living Out of North Carolina

MY EX AND I FILED FOR DIVORCE IN NORTH CAROLINA, SHE NOW LIVES IN GEORGIA AND I LIVE IN CALIFORNIA. I PAY CHILD SUPPORT ON ONE CHILD. DO I HAVE TO ABIDE BY NORTH CAROLINA CHILD SUPPORT LAWS, OR WHERE THE CHILD IS PRESENTLY LIVING? HOW DO WE DETERMINE HOW MUCH CHILD SUPPORT I SHOULD HAVE TO PAY FOR HIM?