1. What is a Percentage Calculator?

Definition: This calculator determines what percentage one number is of another number.

Purpose: It helps with mathematical calculations, financial analysis, statistics, and everyday percentage problems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Part — The portion of the whole you want to find the percentage for
• Whole — The total or reference amount

Explanation: The part is divided by the whole to get a decimal value, which is then multiplied by 100 to convert it to a percentage.

3. Importance of Percentage Calculation

Details: Percentages are fundamental in finance (interest rates), statistics (data analysis), education (test scores), and business (profit margins).

4. Using the Calculator

Tips: Enter the part and whole values. The whole must be greater than zero. The result will show what percentage the part is of the whole.

5. Frequently Asked Questions (FAQ)

Q1: What if my whole is zero?
A: Division by zero is undefined. The whole must be greater than zero for the calculation to work.

Q2: Can I calculate percentage increase/decrease?
A: Yes, use (New Value - Original Value)/Original Value × 100. For decrease, the result will be negative.

Q3: How precise are the results?
A: Results are shown to 2 decimal places for most practical applications.

Q4: Can I use decimals?
A: Yes, both part and whole can be decimal numbers.

Q5: What's the difference between percentage and percentile?
A: Percentage is a proportion out of 100, while percentile indicates a value below which a percentage of data falls.