Apologies if this is a too obvious question
How to type the "Percentage" sign in .tex ? Eg. 10 followed by the percentage.
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TH.'s version would be the easiest. Another way would be to use
siunitx. That is useful if you want units to be set the right way (concerning line breaking behavior, spacing etc.). It works for many units, so it would be a uniform markup, even if you need more than only the percent.
In your preamble: