• Brainly User
This is called the "percent proportion"

"is" is the part of a number. The "of" is the number itself you're trying to find the part of. And let's express the percentage as "p"

So it looks like this:

 \frac{is}{of}= \frac{p}{100}

You're saying that is/of is equal to p/100.

Let's say we were trying to solve the problem "What is 24% of 850?"

We would set it up like this:

 \frac{x}{850}= \frac{24}{100}

I'm substituting "is" for "x" just to make it easier.

Notice that the percent IS NOT IN ITS DECIMAL FORM.

Then, we do cross products, which means we say that 100x=850(24). So, it would be 100x=20400

Then, we simplify the equation:

100x=20400 \\ \frac{100x}{100}= \frac{20400}{100} \\ x=204

So, 24% of 850 is 204.

Hope this helps!
Thanks that does help. Definatly free's me up some time.