Percentage Change Calculator
Calculate percentage change, percent increase, and percent decrease between two values with step-by-step calculations. Perfect for finance, statistics, business analysis, and data comparison.
Percentage Change Calculator
Common Percentage Change Examples
Click on these links to see instant calculations with common percentage changes:
Percentage Change Calculations
Percentage change measures the relative change between an original value and a new value, expressed as a percentage. It shows whether a value has increased or decreased and by how much.
Percentage Change Formula
Positive result = Increase
Negative result = Decrease
Example: (150 - 100) / 100 × 100 = 50% increase
Common Percentage Change Examples
| Original Value | New Value | Change | Percentage Change |
|---|---|---|---|
| 100 | 150 | +50 | +50% |
| 200 | 150 | -50 | -25% |
| 50 | 100 | +50 | +100% |
| 80 | 60 | -20 | -25% |
| 25 | 30 | +5 | +20% |
- Finance: Calculate investment returns, price changes, and financial growth
- Business: Analyze sales growth, revenue changes, and performance metrics
- Statistics: Compare data sets and measure relative changes
- Economics: Track inflation, GDP growth, and economic indicators
- Science: Measure experimental changes and data analysis
Frequently Asked Questions
How do you calculate percentage change?
Percentage change = ((New Value - Old Value) / Old Value) × 100. For example, if a value changes from 50 to 75, the percentage change is ((75-50)/50) × 100 = 50% increase.
What is the difference between percentage change and percentage difference?
Percentage change compares a new value to an original value, while percentage difference compares two values without designating one as the reference. Percentage change can be positive (increase) or negative (decrease).
How do you interpret negative percentage change?
A negative percentage change indicates a decrease. For example, -20% means the value decreased by 20%. A positive percentage change indicates an increase.