וְהָיָ֤ה עֶרְכְּךָ֙ הַזָּכָ֔ר מִבֶּן֙ עֶשְׂרִ֣ים שָׁנָ֔ה וְעַ֖ד בֶּן־שִׁשִּׁ֣ים שָׁנָ֑ה וְהָיָ֣ה עֶרְכְּךָ֗ חֲמִשִּׁ֛ים שֶׁ֥קֶל כֶּ֖סֶף בְּשֶׁ֥קֶל הַקֹּֽדֶשׁ׃
從二十歲到六十歲的男子，他的估價是五十舍客勒銀子，按照聖所的舍客勒計算。
Rashi
והיה ערכך THEN THY ערכך SHALL BE etc. — This word ערך used throughout this section has not the meaning of דמים, market-value (which varies according to the condition of the market or the condition of the person offered for sale, whilst ערך is a fixed value), but whether he be of high value or of low value, according to his age is the ערך fixed for him in this section.
Ibn Ezra
from twenty years beginning with the age when one enters into the census.
Rashbam
ערכך; the two letters כ which are repeated here are similar in construction to the word אדמומית, “reddish, derived from אודם, “red,” or לבנונית, “whitish,” from לבן, “white.”
Rabbeinu Bahya
僅限進階版會員使用Siftei Chakhamim
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僅限進階版會員使用Rashi
ערכך is the same as ערך (i. e. the second כ''ף is not the suffix of the second person masc. sing.). I do not know what grammatical form the doubling of the כ''ף represents.