Percentage Change Calculator
This calculator helps you determine the percentage change between two values, whether it's an increase or decrease. It’s ideal for analyzing price shifts, financial trends, academic scores, and more—providing a clear percentage that reflects the overall change.
Calculate Percent Increase or Decrease Between Values
Percentage Change Formula
$$\text{Percentage Change} = \left( \frac{\text{New Value} – \text{Original Value}}{\text{Original Value}} \right) \times 100\%
$$
Explanation:
The formula calculates the difference between the new and original value, divides it by the original value, and multiplies the result by 100. A positive result indicates an increase; a negative result indicates a decrease.
Percentage Change – Calculation Example
- Original value: 120
- New value: 90
- Step 1: 90 – 120 = -30
- Step 2: -30 / 120 = -0.25
- Step 3: -0.25 × 100 = -25%
Result: -25% (a 25% decrease)
Percentage change is a widely used metric in finance, business, science, and education to express growth or decline. This calculator makes it easy to track and compare variations over time, helping users draw conclusions and make informed decisions.