What percent of 225 is 99?

So then I wrote out
225 Over X
and then I wrote =
To 99/100?
Is that what you would do?
Because if you add up all percents, you should always get 100?
Could someone correct me and help me get the right answer?
THANK YOU!
-Allyson

3 answers

First, let's look at a possible logical answer.

You know that 99 is less than half of 225. So the percentage will be less than 50%.

99 / 225 = 0.44 = 44%
My teacher also taught me that you can set it up in a way so you can cross multiply?
225/100 = 99/x

225x = 9900
x = 9900/225
x = ?