Percentage Increase Calculator
Calculate the percentage increase or decrease between two values. Free online percentage change calculator.
((New − Old) / |Old|) × 100
((150 − 100) / 100) × 100 = 50.00%
50.00%
Increase
Original Value
100
New Value
150
Absolute Difference
50.0000
How Does the Percentage Increase Calculator Work?
Enter the original value and the new value. The calculator computes the percentage change using the formula: ((New − Old) / |Old|) × 100. A positive result indicates an increase, while a negative result indicates a decrease.
Example
If a price goes from $100 to $150, the percentage increase is ((150 − 100) / 100) × 100 = 50%. If a price drops from $200 to $150, the percentage decrease is ((150 − 200) / 200) × 100 = −25%.
Common Use Cases
- Calculating price increases or discounts.
- Measuring growth in revenue, sales, or population.
- Tracking changes in test scores or performance metrics.
- Comparing year-over-year percentage changes in data.
FAQs
What if the original value is zero?
Division by zero is undefined. If the original value is zero, the percentage change cannot be calculated meaningfully — any change from zero is technically infinite.
What is the difference between percentage change and percentage points?
Percentage change measures relative change (e.g., from 4% to 6% is a 50% increase). Percentage points measure the absolute difference (e.g., from 4% to 6% is a 2 percentage point increase).