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If you take 80 percent of a number and get 678, then what is that number? In other words, you know that 80 percent of a number is 678 and you want to know what that initial number is.

To solve this problem you multiply 678 by 100 and then divide the total by 80 as follows: (678 x 100) / 80

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

847.5


Therefore, the answer to "678 is 80 percent of what number?" is 847.5, and you can also derive that 80 percent of 847.5 equals 678.

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