Permille
From Free net encyclopedia
A permille or per mille is a tenth of a percent or one part per thousand. It is written with the sign ‰, which looks like a percent sign (%) with an extra 0 at the end. It is a stylized form of the three zeros in the denominator.
1‰ = 1% × 10-1. For instance, 5‰ = 5/1000 = 0.005 = 0.5%
Permille notation is used in discussion of seawater salinity: the average salinity is 35‰.
When used to describe property taxation in the U.S., it is called the millage rate.
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Related units
- Percentage point
- Percent (%) 1 part in 100.
- Basis point (‱) 1 part in 10,000,
- Parts per million (ppm).
- Parts per billion (ppb).
- Parts per trillion (ppt).
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