# X is what percentage of Y calculator

Percentage Calculator

This calculator will help you find X is what percentage of Y.Enter the two numbers starting with what you wish to find is percentage (x) of then second number(y). Now click calculate, and the calculator will show you a step by step guide on how to calculate X is percentage of Y. In this guide, we will discuss everything you need to know to help you solve percentage problems.

## What is percentage?

Percentage is a corresponding value that indicates any quantity in hundreds of parts. In other words you can define it as a part of a hundred. The word percent has been derived from per 100.

%

## How to calculate X is what percentage of Y

To find X is what percentage of we assume that Y is 100%. Therefore you can form an equation like the one below.

X × 100 /y

Now that we have derived the formula you can use it to solve other problems.

Example 1: 50 is what percent of 90?

X = 50

Y= 90

Step 1: Multiply 50 by 100

50 × 100 = 5000

Step 2: Divide the answer in step 1 by 90

5000/90 = 55.555556

Therefore 50 is 55.555556% of 90

Example 2: 20 is what percent of 200?

X= 20

Y = 200

Step 1: Multiply 20 by 100

20 × 100 =2000

Step 2:  Divide the answer in step 1 by 200

2000/200 = 10

Therefore 20 is 10% of 200

Example 3: 40 is what percent of 10?

X = 40

Y= 10

Step 1: Multiply 40 by 100

40 × 100 = 4000

Step 2: Divide the answer in step 1 by 10

4000/10 =400

Therefore 40 is 400% of 10

## Uses of percentage

Percentage is used in almost every industry in the world. Here are some examples.

1.  To calculate ban interest rates

2. Percentage is used to find discounts in shops

3. Percentage is used to calculate the rate of inflation

4. Percentage is used to analyze and compare the performance

5. It is used to in most financial aspects