90 is what percent of 664? (What percent of 664 is 90?)

90 is what percent of 664?

The question here is "90 is what percent of 664?" which is the same as "What percent of 664 is 90?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 664 equals 90.

The problem is therefore x% of 664 = 90 which can be written as a function:

		x ∗ 664
		100

= 90

And when we solve the function above for x, we get 13.554. The answer to "90 is what percent of 664?" is therefore:

13.554%

How can we know the answer is correct? We know the answer is correct because 13.554 percent of 664 is 90.

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