Percentage Increase Formula:
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Percentage increase measures the relative growth from an original (old) value to a new value, expressed as a percentage of the original value. It's commonly used to track growth, inflation, performance improvements, and other changes over time.
The calculator uses the percentage increase formula:
Where:
Explanation: The formula calculates the difference between the new and old values, divides by the old value to get a relative change, then multiplies by 100 to convert to a percentage.
Details: Percentage increase is fundamental in business (sales growth), finance (investment returns), economics (inflation rates), and science (experimental results). It provides a standardized way to compare changes across different scales.
Tips: Enter both old and new values in the same units. Values must be positive numbers. The calculator will show the percentage increase from old to new value.
Q1: What if my old value is zero?
A: The calculation is undefined when old value is zero (division by zero). The calculator requires positive values.
Q2: How is percentage decrease calculated?
A: The same formula works - a negative result indicates a percentage decrease rather than increase.
Q3: What's the difference between percentage points and percentage increase?
A: Percentage points measure absolute difference between percentages, while percentage increase measures relative change from an original value.
Q4: Can I use this for percentage change between two percentages?
A: Yes, if you're comparing one percentage to another (e.g., 15% to 20%), the formula works the same way.
Q5: Why is percentage increase sometimes misleading?
A: Large percentage increases from very small baselines may represent insignificant absolute changes. Always consider both relative and absolute changes.