Leviticus 27:8

5 And if the person is from five to twenty years old, the value will be twenty shekels for a male, and ten for a female.

6 And if the person is from one month to five years old, then the value for a male will be five shekels of silver, and for a female three shekels.

7 And for sixty years old and over, for a male the value will be fifteen shekels, and for a female, ten.

8 But if he is poorer than the value which you have put on him, then let him be taken to the priest, and the priest will put a value on him, such as it is possible for him to give.

9 And if it is a beast of which men make offerings to the Lord, whatever any man gives of such to the Lord will be holy.

10 It may not be changed in any way, a good given for a bad, or a bad for a good; if one beast is changed for another, the two will be holy.

11 And if it is any unclean beast, of which offerings are not made to the Lord, then let him take the beast before the priest;