1. What is a Percentage Calculator?

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

Purpose: It helps with financial calculations, academic grading, statistical analysis, and everyday percentage calculations.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Part — The portion you want to find the percentage of
• 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), retail (discounts), education (grades), and statistics (data analysis).

4. Using the Calculator

Tips: Enter the part and whole values (must be positive numbers). The whole cannot be zero. Results are shown with 2 decimal places.

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 a valid calculation.

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 this for financial percentages?
A: Yes, this calculator works for any percentage calculation including VAT, interest rates, and profit margins.

Q5: What's the difference between percentage points and percentages?
A: Percentage points refer to absolute difference (e.g., 5% to 7% is a 2 percentage point increase), while percentages refer to relative difference (40% increase in this case).