How to find percentage value given two numbers?

How to find percentage of two numbers?

Before we begin, read our introduction to percentage if you haven't done yet.

How to work out percentage?

Percentage of two numbers (X is what percent of Y?)

Example 1: 18 is what percent of 90?

First, we write down the the numbers as a ratio: 18/90
which can be rewritten as 18/90 × 100/100
or, (18/90×100) / 100
20/100 = 20%

As can be seen, we can find the percentage of x and y by simply dividing x by y and multiplying the result with 100.

Example 2: 400 is what percent of 500?
400/500×100 = 80%

As a corollary of above result, any fractional number or a decimal can be converted to its percentage equivalent by multiplying it with 100.

5/10 = 5/10 × 100 = 50%
0.25 = 0.25 × 100 = 25%

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