Percentage Calculators

What is X as a % of Y?

Want to know what X is as a percentage of Y? Use the below tool to get an instant answer to the calculation of what one number is as a percentage of another. This will answer questions such as:

What is X as a % of Y?

What percentage is X of Y?

What is the % change from X to Y?

Also known as percentage increase and percentage decrease, this instant percentage change calculator will show the % increase from X to Y or the % decrease from X to Y.

This calculator is useful when the order of the numbers doesn’t matter. You would generally use the % change when there is an old value and a new value to compare.

This will answer questions such as:

What is the % change from X to Y?

What is the % increase from X to Y?

What is the % decrease from X to Y?

Please note percentage change is NOT the same as percentage difference. See the percentage difference calculator below.

What is the % difference between X and Y?

This percentage difference calculator will instantly show the percentage difference between 2 numbers that are greater than 0. You would generally use the % difference when comparing the difference between 2 similar things such as:

What is the percentage difference between product X and product Y?

One box has X items in, another has Y items in. What is the percentage difference?

Please note percentage difference is NOT the same as percentage change. See the percentage change calculator above.

What is X% of Y?

Want to know what X% of Y is? This instant % of calculator will tell you. This is useful for answering questions such as:

A bill comes to Y amount and is to be split between people. What is X% of the bill?