Do footnotes for outside commas

In general, footnotes are placed after punctuation marks, including commas, when they are part of the sentence structure. This means that if a sentence includes a comma, the footnote number should follow the comma. However, if the footnote pertains to a specific Word or phrase preceding the comma, it can be placed before the comma to clarify the reference. Always follow the specific style guide (like APA, MLA, or Chicago) you are using, as practices may vary slightly.