15 is what percent of 578? (What percent of 578 is 15?)

15 is what percent of 578?

The question here is "15 is what percent of 578?" which is the same as "What percent of 578 is 15?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 578 equals 15.

The problem is therefore x% of 578 = 15 which can be written as a function:

		x ∗ 578
		100

= 15

And when we solve the function above for x, we get 2.595. The answer to "15 is what percent of 578?" is therefore:

2.595%

How can we know the answer is correct? We know the answer is correct because 2.595 percent of 578 is 15.

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