1. What is Percentage Increase?

Percentage increase measures how much a quantity has grown relative to its original value, expressed as a percentage. It's commonly used in finance, economics, statistics, and general data analysis to compare growth rates.

2. How Does the Calculator Work?

The calculator uses the percentage increase formula:

Where:

• New Value — The current or final measurement
• Old Value — The original or initial measurement

Explanation: The formula calculates the difference between values, divides by the original to get relative change, then converts to percentage by multiplying by 100.

3. Importance of Percentage Increase

Details: Percentage increase is fundamental for analyzing growth rates, comparing changes across different scales, evaluating investments, measuring performance improvements, and tracking inflation or price changes.

4. Using the Calculator

Tips: Enter both old and new values as positive numbers. The calculator handles decimal values. Old value cannot be zero (division by zero is undefined).

5. Frequently Asked Questions (FAQ)

Q1: What if my result is negative?
A: A negative result indicates a percentage decrease rather than increase.

Q2: 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.

Q3: What's considered a "good" percentage increase?
A: This depends entirely on context - a 5% salary increase might be good, while a 5% increase in error rate would be bad.

Q4: Can I calculate percentage decrease with this?
A: Yes, the result will simply be negative when the new value is smaller than the old value.

Q5: Why multiply by 100 at the end?
A: This converts the decimal fraction (like 0.25) to a percentage (25%) which is more intuitive for most people.