587.1. As regards the support owed to a child by his parents, the basic parental contribution, as determined pursuant to the rules for the determination of child support payments adopted under the Code of Civil Procedure (chapter C-25), is presumed to meet the needs of the child and to be in proportion to the means of the parents. The basic parental contribution may be increased having regard to certain expenses relating to the child which are specified in the rules, to the extent that such expenses are reasonable considering the needs and means of the parents and child.