Leviticus 27:5

“Speak to the children of Israel, and say to them, ‘When a man consecrates a person to the LORD in a vow, according to your valuation,

your valuation of a male from twenty years old to sixty years old shall be fifty shekels of silver, according to the shekel of the sanctuary.

If she is a female, then your valuation shall be thirty shekels.

If the person is from a month old to five years old, then your valuation shall be for a male five shekels of silver, and for a female your valuation shall be three shekels of silver.

If the person is from sixty years old and upward; if he is a male, then your valuation shall be fifteen shekels, and for a female ten shekels.

But if he is poorer than your valuation, then he shall be set before the priest, and the priest shall assign a value to him. The priest shall assign a value according to his ability to pay.