• Capricorn_Geriatric@lemmy.world
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      23 hours ago

      Per cent is per hundered (1/100). The sign is %.

      Per mille is per thousand (1/1000). The sign is ‰.

      It’s basically used to say 0.1% as 1‰ without using decimals because fuck them.

      On another note, the symbols used are ingenious. The diagonal line represents “1”, and the number of o’s is the same as in the number (two for hundered and three for thousand)

        • itslilith@lemmy.blahaj.zone
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          1 day ago

          mille, not mile. mille means thousand, so “per mille” means “per thousand”, just as “per cent” means “per hundred”. so 10‰ is 1%

    • floquant@lemmy.dbzer0.com
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      2 days ago

      They are similar in the same way as millimeters and centimeters, hectograms and kilograms, etc. One is 10 times smaller than the other, so they represent the same unit at different scales. The name “per cent(o)” means 1 in 100, while “per mille” means 1 in 1000