Leviticus 27:13

But if he wants at all to redeem it, then he must add one-fifth to your valuation.

Surrounding context

27:12 and the priest shall set a value for it, whether it is good or bad; as you, the priest, value it, so it shall be.

27:13 But if he wants at all to redeem it, then he must add one-fifth to your valuation.

27:14 "And when a man dedicates his house to be holy to the LORD, then the priest shall set a value for it, whether it is good or bad; as the priest values it, so it shall stand.

Translation and sources