1. What is a Percentage Increase Calculator?

Definition: This calculator determines the percentage increase between an old value and a new value.

Purpose: It helps analyze growth rates, price changes, performance improvements, and other comparative measurements.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• New — The current or new measurement (unitless)
• Old — The original or previous measurement (unitless)

Explanation: The difference between new and old values is divided by the old value to get the relative change, then multiplied by 100 to convert to percentage.

3. Importance of Percentage Increase Calculation

Details: Percentage increase is fundamental in financial analysis, scientific research, business metrics, and everyday comparisons to understand growth rates and changes.

4. Using the Calculator

Tips: Enter both old and new values (must be positive numbers). The calculator will show the percentage increase (or decrease if negative).

5. Frequently Asked Questions (FAQ)

Q1: What does a negative result mean?
A: A negative percentage indicates a decrease rather than an increase between the old and new values.

Q2: Why is the old value in the denominator?
A: The calculation measures change relative to the original value, making it a percentage of the starting point.

Q3: Can I use this for percentage decrease?
A: Yes, when new value is less than old value, the result will automatically show the percentage decrease.

Q4: What units should I use?
A: The values are unitless, but both must be in the same units (both in dollars, both in kilograms, etc.).

Q5: How precise are the results?
A: Results are shown to 2 decimal places for percentage values.