RSA 546-A:5: Amount of Support.

When determining the amount due for support the court shall consider all relevant factors including but not limited to: (a) the standard of living and situation of the parties; (b) the relative wealth and income of the parties; (c) the ability of the obligor to earn; (d) the ability of the obligee to earn; (e) the need of the obligee; (f) the age of the parties; (g) the responsibility of the obligor for the support of others.