Leviticus 27 13
If you then decide to buy the animal back, you have to add one fifth to its value in payment.
Compare with other 3 random translations
NKJ Leviticus 27:13But if he wants at all to redeem it, then he must add one-fifth to your valuation.
GW Leviticus 27:13If you want to buy it back, you must pay its full value plus one-fifth more.
KJV Leviticus 27:13But if he will at all redeem it, then he shall add a fifth part thereof unto thy estimation.