What is the correct way of writing a percentage next to \oldstylenums? - TeX - LaTeX Stack Exchange
How to write percent(%) symbol in LaTeX?
symbols - Percent signs - "comment" and "active" both at once? - TeX - LaTeX Stack Exchange
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command line - In Windows Explorer, why can we create a folder or file with the percent (%) symbol, if the percent symbol is used for existing variables? - Super User
Percent sign - Wikipedia
tables - Spurious spaces in tabular environment with siunitx and percent symbol - TeX - LaTeX Stack Exchange
Percent sign within href is interpreted as comment · Issue #1108 · texstudio-org/texstudio · GitHub
c - Why is there an extra percent sign after the output? - Stack Overflow