Leviticus 27:11-13

NHEB(i) 11 If it is any unclean animal, of which they do not offer as an offering to the LORD, then he shall set the animal before the priest; 12 and the priest shall value it, whether it is good or bad. As you the priest values it, so shall it be. 13 But if he will indeed redeem it, then he shall add the fifth part of it to its valuation.