In determining the
financial contribution towards the financial support necessary for the
maintenance of the child that should be made by a party to the proceedings who
is a step-parent of the child, a court must take into account —
(a) the
matters referred to in sections 114, 115, 116 and 122; and
(b) the
extent to which the primary duty of the parents to maintain the child is
being, and can be fulfilled.