CalcPercentage Change Calculator
Last updated: 2026-05-09
The Percentage Change Calculator is a free online math calculator. Calculate the percentage increase or decrease between two values. Get instant results with the detailed formula and step-by-step examples.
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Result
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Common Sizes — Click to Fill
| Initial value | Final value | |
|---|---|---|
| Caso basico | 32.0 | 40.0 |
| Caso tipico | 56.0 | 70.0 |
| Caso medio | 80.0 | 100.0 |
| Caso avanzado | 120.0 | 150.0 |
| Caso extremo | 200.0 | 250.0 |
What is percentage change?
Percentage change measures how much a quantity has increased or decreased relative to its original value. A positive result means an increase; a negative result means a decrease. It's used to compare prices, financial results, statistics, and any measurable quantity that changes over time.
Percentage change formula
Change % = ((New Value − Original Value) ÷ Original Value) × 100
Step-by-step examples
Example 1 – Price increase: An apartment was worth $180,000 and is now $220,000.
- Difference: 220,000 − 180,000 = $40,000
- Change: (40,000 ÷ 180,000) × 100 = +22.2%
Example 2 – Stock drop: A stock falls from $50 to $38.
- Difference: 38 − 50 = −$12
- Change: (−12 ÷ 50) × 100 = −24%
Common uses
- Finance: Investment returns, stock price movements.
- Economics: Monthly inflation, GDP growth, unemployment rate changes.
- Business: Quarter-over-quarter sales comparison.
- Science: Population growth, temperature variation measurement.