千分比(per mil或per mill,符號為‰ ,Unicode:U+2030)是一種表達比例、比率或分數數值的方法,使用1000作為分母。
‰ | |
---|---|
千分號 | |
例如:
- 1‰ = 10-3 = 1/1000 = 0.001 = 0.1%
- 82‰,即表示千分之82,或82/1000或0.082或8.2%。
- 5‰ = 5×10-3 = 5/1000 = 0.005 = 0.5%
千分比的英文名稱是permil、permille、per mil、per mill或promille。
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