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 to track growth rates in business, economics, and statistics.

2. How Does the Calculator Work?

The calculator uses the percentage increase formula:

Where:

• New Value — The current or final value
• Old Value — The original or starting value

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

3. Practical Applications

Details: Percentage increase is used in financial analysis (revenue growth), population studies, price changes, performance metrics, and scientific measurements.

4. Using the Calculator

Tips: Enter both old and new values as positive numbers. The old value must be greater than zero. Results show the percentage growth from old to new value.

5. Frequently Asked Questions (FAQ)

Q1: What if my old value is zero?
A: The calculation is undefined when old value is zero, as division by zero is impossible. In such cases, consider absolute change instead.

Q2: How is percentage decrease calculated?
A: The same formula works - you'll get a negative result indicating decrease rather than increase.

Q3: What's the difference between percentage points and percentage increase?
A: Percentage points measure absolute difference between two percentages, while percentage increase measures relative change from an original value.

Q4: How do I interpret a 100% increase?
A: A 100% increase means the value has doubled (become twice as large as the original).

Q5: Can percentage increase be more than 100%?
A: Yes, values greater than 100% indicate the new value is more than double the original.