1. What is Percentage Increase?

Percentage increase measures how much a quantity grows relative to its original value, expressed as a percentage. It's commonly used in finance, economics, statistics, and everyday calculations like price changes or performance improvements.

2. How Does the Calculator Work?

The calculator uses the percentage increase formula:

Where:

• Old Value — The original quantity before increase
• Rate — The percentage increase (e.g., 5 for 5%)
• New Value — The resulting quantity after increase

Example: If a $100 product has a 10% price increase, the new price is $100 × (1 + 10/100) = $110.

3. Practical Applications

Details: Percentage increase calculations are used in salary raises, investment returns, price adjustments, performance metrics, population growth rates, and many business and scientific applications.

4. Using the Calculator

Tips: Enter the original value and the percentage increase you want to apply. Both values must be non-negative numbers. The calculator will show the increased value.

5. Frequently Asked Questions (FAQ)

Q1: How is percentage increase different from absolute increase?
A: Percentage increase shows growth relative to the original size, while absolute increase shows the numerical difference (e.g., 10% of 100 is +10, but 10% of 1000 is +100).

Q2: Can I use this for percentage decreases?
A: Yes, by entering a negative percentage (though our other percentage decrease calculator might be more appropriate).

Q3: How do I calculate the percentage increase between two values?
A: Use the formula: ((New Value - Old Value) / Old Value) × 100.

Q4: Why multiply by (1 + rate/100) instead of adding percentage?
A: Mathematically equivalent, but this form clearly shows the multiplicative relationship and works better for compound calculations.

Q5: How does compounding work with percentage increases?
A: For multiple increases, multiply the factors sequentially (e.g., two 10% increases: 100 × 1.10 × 1.10 = 121, not 120).