Percentage Change Calculator
Calculate percentage increase, decrease, and percentage difference between two values. Useful for analyzing growth rates and changes.
Percentage Change Results
Original: -
New: -
Change: -
Percentage: -%
How to use the Percentage Change Calculator
- Enter the original value.
- Enter the new value.
- Click Calculate.
- See the change and whether it is an increase or decrease.
Formula used
Worked example
Examples
Salary ₹50,000 → ₹56,000: +12%
Score 80 → 60: −25%
Increase and decrease are not symmetric
A 25% fall needs a 33.3% rise to get back to the start (80 → 60 → 80). This matters for investments: a stock that drops 50% must double to recover. For comparing two values without a "before" and "after", use percentage difference instead.
Tips for accurate results
- The original value cannot be zero.
- A negative result is a decrease.
- Use percentage points for changes in rates (8% to 10% is +2 points).
Frequently Asked Questions
(New − Old) ÷ Old × 100.
The value has doubled.
No, the most a positive value can fall is 100%.
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Content reviewed by Vinod, Easy Smart Calculator · Last updated October 2026
Understanding Percentage Change
Percentage Change Formula: ((New Value - Original Value) / Original Value) × 100
Percentage Increase: When new value is greater than original value (positive percentage)
Percentage Decrease: When new value is less than original value (negative percentage)
Real-World Examples
- Stock Price: If a stock goes from ₹100 to ₹150, that's a 50% increase
- Sales Growth: If sales grow from ₹10,000 to ₹12,000, that's a 20% increase
- Inflation: If prices go from ₹200 to ₹250, there's a 25% increase
- Discounts: If an item was ₹500 and is now ₹350, that's a 30% discount