וְכָל־עֶרְכְּךָ֔ יִהְיֶ֖ה בְּשֶׁ֣קֶל הַקֹּ֑דֶשׁ עֶשְׂרִ֥ים גֵּרָ֖ה יִהְיֶ֥ה הַשָּֽׁקֶל׃ (ס)
Y todo lo que apreciares será conforme al siclo del santuario: el siclo tiene veinte óbolos.
Rashi on Leviticus
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.
Siftei Chakhamim
Must be in holy shekolim. Rashi is answering the question: The verse implies that no valuation is less than a shekel, but this is not true since we assess him according to his means and leave him enough to live on, as said earlier (verse 8).
Rashi on Leviticus
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).