Leviticus 27:27

27:27 If, however, it is among the unclean animals, he may ransom it according to its conversion value and must add one fifth to it, but if it is not redeemed it must be sold according to its conversion value.

Leviticus 6:6

6:6 Then he must bring his guilt offering to the Lord, a flawless ram from the flock, convertible into silver shekels, for a guilt offering to the priest.

Leviticus 27:2

27:2 “Speak to the Israelites and tell them, ‘When a man makes a special votive offering based on the conversion value of persons to the Lord,