87 is what percent of 408? (What percent of 408 is 87?)

87 is what percent of 408?

The question here is "87 is what percent of 408?" which is the same as "What percent of 408 is 87?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 408 equals 87.

The problem is therefore x% of 408 = 87 which can be written as a function:

		x ∗ 408
		100

= 87

And when we solve the function above for x, we get 21.324. The answer to "87 is what percent of 408?" is therefore:

21.324%

How can we know the answer is correct? We know the answer is correct because 21.324 percent of 408 is 87.

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