Percentage Formula:
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Percentage calculation converts a fraction (a/b) into a percentage by multiplying by 100. It's a fundamental mathematical operation used to express proportions and comparisons.
The calculator uses the percentage formula:
Where:
Explanation: The formula shows what portion the numerator is of the denominator, expressed as a percentage (out of 100).
Details: Percentages are essential in statistics, finance, science, and everyday life for comparing proportions, calculating discounts, expressing probabilities, and more.
Tips: Enter both numerator and denominator as positive numbers. The denominator cannot be zero. Results are rounded to 2 decimal places.
Q1: What if my denominator is zero?
A: Division by zero is undefined. The calculator requires a non-zero denominator.
Q2: Can I use decimal numbers?
A: Yes, both numerator and denominator can be decimal numbers for precise calculations.
Q3: How is this different from percentage change?
A: This calculates a simple proportion. Percentage change compares the difference between two values relative to the original value.
Q4: What's the maximum percentage possible?
A: There's no theoretical maximum. A percentage over 100% means the numerator exceeds the denominator.
Q5: How do I convert percentage back to fraction?
A: Divide the percentage by 100 to get the decimal fraction (e.g., 75% = 0.75 = 3/4).