1. What is Percentage Increase?

Percentage increase calculates how much a value grows when increased by a certain percentage. It's commonly used in finance, economics, statistics, and everyday calculations to measure growth or inflation.

2. How Does the Calculator Work?

The calculator uses the percentage increase formula:

Where:

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

Explanation: The formula converts the percentage rate to a decimal (by dividing by 100), adds 1 to represent the original value plus the increase, then multiplies by the old value.

3. Practical Applications

Details: Percentage increase calculations are used in salary raises, price adjustments, investment growth, population growth studies, and performance metrics.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: How is this different from percentage difference?
A: Percentage increase calculates growth from an original value, while percentage difference compares two distinct values.

Q2: Can I use this for percentage decreases?
A: Yes, by entering a negative percentage (though the calculator currently restricts to positive values to prevent confusion).

Q3: What if I know the new value and want to find the percentage increase?
A: You would use: ((New Value - Old Value) / Old Value) × 100. This calculator does the inverse calculation.

Q4: Why multiply by (1 + rate/100) instead of adding separately?
A: This method is more efficient mathematically and clearly shows the relationship between the original and increased values.

Q5: How precise are the calculations?
A: Results are rounded to 2 decimal places for readability, while internal calculations maintain higher precision.