How to get the percentage of a column in the footer callback?

How to get the percentage of a column in the footer callback?

RoduRodu Posts: 1Questions: 1Answers: 0

Hi, I wish I made a footer callback with the percentage of a numbers that are in a row. The example of footer callback talk about how we can a SUM of numbers, but I want the PERCENT, any idea? Pls. Greetings!

I try to get the total of rows of the current page (filtered) but I don't know how do this.
Thanks in advance!

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