How to Use the Percentage Increase / Decrease Calculator
This calculator allows you to determine the percentage change between two values instantly, saving time on manual calculations.
- Enter the original value.
- Enter the new value.
- Click the "Calculate Percentage Change" button.
- The result will display the percentage increase or decrease.
Percentage Change Formula
Percentage Change = ((New Value − Original Value) ÷ Original Value) × 100
A positive result indicates a percentage increase, while a negative result indicates a decrease.
Example Calculations
| Original Value | New Value | Result |
|---|
| 100 | 120 | 20% Increase |
| 500 | 400 | 20% Decrease |
| 80 | 100 | 25% Increase |
| 200 | 150 | 25% Decrease |
Applications of Percentage Change
Percentage change calculations are commonly used in finance, business, statistics, and daily life. Use cases include:
- Tracking revenue growth or loss
- Calculating discounts and price changes
- Determining profit margins and markups
- Comparing data and statistics efficiently
Check other useful tools on QuickToolsUltra: Discount Calculator, GST Calculator, Compound Interest Calculator.
Percentage Calculator FAQ
How do you calculate percentage increase?
Subtract the original value from the new value, divide by the original value, and multiply by 100.
How do you calculate percentage decrease?
Subtract the new value from the original value, divide by the original value, and multiply by 100.
Why is percentage change important?
It helps measure growth, loss, and changes between two values in an easy-to-understand format.
Can this calculator handle discounts and markups?
Yes, it is ideal for calculating discounts, markups, and profit margins.
Is this tool free to use?
Yes, it works completely free in your browser without installation.