When selecting an amount of rows, how can I select a percentage of a percentage?

Posted by Rob on Stack Overflow See other posts from Stack Overflow or by Rob
Published on 2010-05-07T05:04:56Z Indexed on 2010/05/07 5:08 UTC
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php

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mysql

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percentage

Fairly simple question:

Say I want to use 30 percent of the rows in the table of my MySQL table.

However I also have a user input where they can select a percentage of that percentage

For example: $_GET['percentage']% of 30%

so we say that $_GET['percentage'] = 30

How would I select 30% (or $_GET['percentage']) of 30% to use in a while loop?

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