Leviticus 27:6-16

6 for a person between one month and five years, set the value of a male at five shekelsa of silver and that of a female at three shekelsb of silver;
7 for a person sixty years old or more, set the value of a male at fifteen shekelsc and of a female at ten shekels.
8 If anyone making the vow is too poor to pay the specified amount, the person being dedicated is to be presented to the priest, who will set the value according to what the one making the vow can afford.
9 “ ‘If what they vowed is an animal that is acceptable as an offering to the LORD, such an animal given to the LORD becomes holy.
10 They must not exchange it or substitute a good one for a bad one, or a bad one for a good one; if they should substitute one animal for another, both it and the substitute become holy.
11 If what they vowed is a ceremonially unclean animal—one that is not acceptable as an offering to the LORD—the animal must be presented to the priest,
12 who will judge its quality as good or bad. Whatever value the priest then sets, that is what it will be.
13 If the owner wishes to redeem the animal, a fifth must be added to its value.
14 “ ‘If anyone dedicates their house as something holy to the LORD, the priest will judge its quality as good or bad. Whatever value the priest then sets, so it will remain.
15 If the one who dedicates their house wishes to redeem it, they must add a fifth to its value, and the house will again become theirs.
16 “ ‘If anyone dedicates to the LORD part of their family land, its value is to be set according to the amount of seed required for it—fifty shekels of silver to a homerd of barley seed.