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A percent sign with an extra circle, meaning 'per thousand'.
Also known as: Permille, Per thousand sign, Permil
The per mille sign expresses parts per thousand. It is used where percentages would be inconveniently small — blood alcohol concentration, seawater salinity, and some financial rates.
Expresses a proportion of one thousand, so 5‰ is five parts per thousand, or 0.5%.
Contexts: Mathematics
Is used where percentages would be awkwardly small, including blood alcohol concentration in several European countries and the salinity of seawater.
Contexts: Mathematics
A diagonal stroke with one small circle above it and two below, extending the percent sign.
The percent sign has one circle below rather than two.