# Percentage Calculator

A percentage calculator helps measure any change in percentage terms and can be used to calculate grades, the difference between two values, increase or decrease in profits, etc.

### How To Use An Online Percentage Calculator

The calculator offers three scenarios wherein a user fills in the blanks to arrive at the desire output. The values of X and Y can be entered to complete the calculation, see below:

What is X% of Y?

X is what% of Y?

X is Y% of what?

Let us assume the value of X as 10 and Y as 20, this will give us the following:

What is 10% of 20?

10 is what% of 20?

10 is 20% of what?

The calculator will compute the value of 'what' in all three scenarios.

### How Do You Calculate Percentages Online?

An online percentage calculator can aid in multiple scenarios. It can help users bypass tiresome calculations, whether one wants to calculate the percentage difference between two values or map the percentage increase and decrease.

Percentage change is the difference between two numeric values displayed in a measure against 100. The ratio's numerical value is multiplied by 100 to obtain the per cent value.

Example: How to find the percentage of 50 items in a sample of 1,250?

• Calculate the ratio: 50/1,250 = 0.04,

• Multiply by 100 (0.04*100), which results in 4 per cent.

The other method is by multiplying:

Using the same example:

• Multiply 50 by 100 (50*100) to get 5,000

• Divide by 1,250 (5,000*1,250), which also results in 4 per cent.

### What Is The Percentage Of A Number?

A value or ratio that may be stated as a fraction of 100 is a percentage in mathematics. If we need to determine a percentage of a number, we should divide it by 100 and multiply the result. The proportion, therefore, refers to a component per hundred. 'Per 100' is what the word 'per cent' means. The % symbol represents per cent.

An online calculator automatically transforms the percentage entered into a decimal to compute the answer. When calculating a percentage, however, the result will be the total percentage rather than its decimal representation.