Percentage Change Calculator
Calculate the percentage change between two values, whether increase or decrease. Essential for financial analysis, statistics, and data comparison.
Percentage Change Formula
| Formula | Result | ((New - Old) /Old) × 100Positive = increase, Negative = decrease
Percentage Change Examples
FromTo% Change 100150+50% 10075-25% 50100+100% | 200 | 50 | -75% |
Implementation
``javascript
function percentageChange(original, newValue) {
if (original === 0) return newValue === 0 ? 0 : (newValue > 0 ? Infinity : -Infinity);
return ((newValue - original) / Math.abs(original)) * 100;
}
``
Year-over-Year Change
YoY percentage change compares values from the same period in different years, eliminating seasonal variations and showing true growth trends.