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Percentage Increase Formula:
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Percentage increase measures how much a quantity has grown relative to its original value, expressed as a percentage. It's commonly used to track growth rates, price changes, performance improvements, and other comparative measurements.
The calculator uses the percentage increase formula:
Where:
Explanation: The formula calculates the difference between the new and old values, divides by the original value to get the relative change, then multiplies by 100 to convert to a percentage.
Details: Percentage increase is fundamental in financial analysis (investment returns, price changes), business metrics (sales growth), scientific research (experimental results), and personal finance (salary increases).
Tips: Enter both old and new values as positive numbers. The old value must be greater than zero (division by zero is undefined). Results show the percentage change from old to new value.
Q1: What if my old value is zero?
A: The calculation is undefined when old value is zero, as you cannot divide by zero. In such cases, consider absolute difference instead of percentage change.
Q2: How do I calculate annual percentage increase?
A: Use the same formula with values from different years. For per-year increase, divide by the number of years between measurements.
Q3: What does a negative percentage mean?
A: A negative result indicates a percentage decrease rather than increase (new value is less than old value).
Q4: How is this different from percentage points?
A: Percentage increase is relative to the original value, while percentage points measure absolute difference between two percentages.
Q5: Can I calculate compound growth with this?
A: For compound growth over multiple periods, you would need to use the compound growth formula: [(End Value/Start Value)^(1/Periods) - 1] × 100