Percentage Formula:
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Definition: This calculator computes the value that represents a specified percentage of a given number.
Purpose: It helps quickly determine portions, discounts, tips, taxes, and other percentage-based calculations in daily life and business.
The calculator uses the formula:
Where:
Explanation: The percentage is divided by 100 to convert it to a decimal, then multiplied by the number to find the portion.
Details: Percentage calculations are fundamental in finance, statistics, shopping discounts, restaurant tipping, tax calculations, and many real-world applications.
Tips: Enter the percentage value (without the % sign) and the base number. Both values must be ≥ 0.
Q1: How do I calculate 20% of 50?
A: Enter 20 as the percentage and 50 as the number. The result will be 10.
Q2: Can I calculate more than 100% of a number?
A: Yes, percentages over 100 will give you results larger than the original number.
Q3: What's the difference between percentage and percentage points?
A: Percentage is relative (e.g., 5% of 100 is 5), while percentage points are absolute (e.g., increasing from 10% to 15% is a 5 percentage point increase).
Q4: How is this different from percentage change?
A: This calculates a portion of a number, while percentage change compares the difference between two numbers.
Q5: Can I use this for reverse percentage calculations?
A: No, this calculator finds X% of Y. For "X is what percent of Y?" you would need a different calculator.