About This Tool
The Percentage Decrease Calculator finds the percentage decrease between an original value and a new, lower value — useful for price drops, weight loss tracking and more.
Frequently Asked Questions
How is percentage decrease calculated?
Percentage Decrease = ((Original Value - New Value) / Original Value) × 100.
What if the new value is higher than the original?
A negative result means the value actually increased. For increases, use our Percentage Increase Calculator instead.
Is this the same as a discount calculation?
Yes, a discount percentage is a percentage decrease applied to a price. Our Discount Calculator is specifically designed for retail price discounts.