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, inflation, performance improvements, and other changes over time.

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. Applications of Percentage Increase

Details: Percentage increase is used in finance (investment returns), economics (inflation rates), business (sales growth), science (experimental results), and everyday life (price changes).

4. Using the Calculator

Tips: Enter both values (new and old) as positive numbers. The old value cannot be zero. Results show how much the new value has increased relative to the old value as a percentage.

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 difference?
A: Percentage increase is directional (new vs old), while percentage difference compares any two values without directionality.

Q3: Why can't the old value be zero?
A: Division by zero is mathematically undefined. You cannot calculate percentage change from zero.

Q4: What's considered a "good" percentage increase?
A: This depends entirely on context - a 5% salary increase might be great, while a 5% increase in error rate would be bad.

Q5: How do I interpret a >100% increase?
A: This means the value has more than doubled (e.g., 200% increase = 3x the original value).