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, price changes, performance improvements, and other comparative metrics.

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 initial value

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

3. Importance of Percentage Increase Calculation

Details: Percentage increase is fundamental in business (sales growth), finance (investment returns), economics (price inflation), and science (experimental results). It provides a standardized way to compare changes across different scales.

4. Using the Calculator

Tips: Enter both old and new values. The old value must be greater than zero (division by zero is undefined). Results show the percentage change, with positive values indicating increase and negative values indicating decrease.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between percentage increase and absolute increase?
A: Absolute increase is simple subtraction (new - old), while percentage increase shows the change relative to the original value.

Q2: How do I calculate a 10% increase?
A: Multiply the original value by 1.10 (or add 10% of the original value to itself).

Q3: Can percentage increase be more than 100%?
A: Yes, this indicates the value has more than doubled (e.g., 200% increase means the value is 3 times the original).

Q4: What if my old value was zero?
A: Percentage change is undefined when starting from zero, as it would require division by zero.

Q5: How is percentage decrease calculated?
A: The same formula applies - the result will be negative when new value is less than old value.