Percentage Decrease Calculator

Original Value

New Value

Formula: % Decrease = ((Original Value - New Value) / Original Value) × 100

Examples

How do I calculate percentage decrease?

Subtract the new value from the original value, divide by the original value, and multiply by 100.

What if the new value is more than the original?

That is a percentage increase. Try our Percentage Increase Calculator instead.

Is 50% decrease half the amount?

Yes, a 50% decrease means the new value is exactly half of the original value.

Can a percentage decrease be more than 100%?

If a value decreases by 100%, it becomes 0. Generally, values do not decrease by more than 100% unless going into negative.