Leviticus 27:25

וכל ערכך יהיה בשקל הקדש Every valuation shall be made according to the holy shekel: i.e., every valuation regarding which shekels are written, will be made according to the holy shekel. עשרים גרה TWENTY GERAH — twenty meahs. This was what it was originally, but later on they increased it by one sixth. Our Rabbis stated: six silver meahs make a silver denar; thus twenty-four meahs make a selah (a shekel) (cf. Rashi on Exodus 30:13), a shekel being four denars (Bekhorot 26b).

וְכׇ֨ל־עֶרְכְּךָ֔ יִהְיֶ֖ה בְּשֶׁ֣קֶל הַקֹּ֑דֶשׁ עֶשְׂרִ֥ים גֵּרָ֖ה יִהְיֶ֥ה הַשָּֽׁקֶל׃

And all estimations shall be according to the shekel of the sanctuary: twenty gera shall be the shekel.