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If you take 21 percent of a number and get 828, then what is that number? In other words, you know that 21 percent of a number is 828 and you want to know what that initial number is.

To solve this problem you multiply 828 by 100 and then divide the total by 21 as follows: (828 x 100) / 21

When we put that into our calculator, we get the following answer:

3942.86


Therefore, the answer to "828 is 21 percent of what number?" is 3942.86, and you can also derive that 21 percent of 3942.86 equals 828.

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