Leviticus 27:14

10 He must not replace it or exchange it, either good for bad or bad for good. But if he does substitute one animal for another, both that animal and its substitute will be holy.

11 But if the vow involves any of the unclean animals that may not be brought as an offering to the LORD, the animal must be presented before the priest.

12 The priest shall set its value, whether high or low; as the priest values it, the price will be set.

13 If, however, the owner decides to redeem the animal, he must add a fifth to its value.

14 Now if a man consecrates his house as holy to the LORD, then the priest shall value it either as good or bad. The price will stand just as the priest values it.

15 But if he who consecrated his house redeems it, he must add a fifth to the assessed value, and it will belong to him.

16 If a man consecrates to the LORD a parcel of his land, then your valuation shall be proportional to the seed required for it—fifty shekels of silver for every homer of barley seed.

17 If he consecrates his field during the Year of Jubilee, the price will stand according to your valuation.

18 But if he consecrates his field after the Jubilee, the priest is to calculate the price in proportion to the years left until the next Year of Jubilee, so that your valuation will be reduced.

Read all of Leviticus 27