Leviticus 27:11-13

King James Version

¹¹ And if it be any unclean beast, of which they do not offer a sacrifice unto the Lord, then he shall present the beast before the priest:

¹² And the priest shall value it, whether it be good or bad: as thou valuest it, who art the priest, so shall it be.

¹³ But if he will at all redeem it, then he shall add a fifth part thereof unto thy estimation.