Enter your values
Percentage Decrease
—
Enter values to calculate.
How this calculator works
To calculate percentage decrease, subtract the new value from the original value, divide the difference by the original value, and multiply by 100. This tells you how much the value fell relative to the starting point.
Formula: ((original value − new value) ÷ original value) × 100
Example
If a price drops from 200 to 150:
((200 − 150) ÷ 200) × 100 = 25%
So the percentage decrease is 25%.
Common uses
- Calculating sale markdowns and discounts
- Measuring drops in traffic, sales, or revenue
- Comparing reduced budgets or expenses
- Tracking declines in weight, inventory, or output
Frequently asked questions
What is percentage decrease?
It shows how much a value has fallen compared with its original amount, expressed as a percentage.
It shows how much a value has fallen compared with its original amount, expressed as a percentage.
Why do I divide by the original value?
Because percentage decrease is always measured relative to the starting point, not the ending point.
Because percentage decrease is always measured relative to the starting point, not the ending point.
Can I use this for money and pricing?
Yes. It is commonly used for sales prices, invoice reductions, cost savings, and other everyday decreases.
Yes. It is commonly used for sales prices, invoice reductions, cost savings, and other everyday decreases.