Decimal to Percentage Formula:
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Decimal to percentage conversion is a mathematical operation that transforms a decimal number into its equivalent percentage form. Percentages are widely used in everyday life to express proportions, rates, and comparisons.
The calculator uses the simple formula:
Explanation: Since "percent" means "per hundred," multiplying a decimal by 100 converts it to its percentage equivalent.
Details: Percentages are more intuitive for most people to understand than decimals, especially when discussing proportions, discounts, interest rates, or statistical data.
Tips: Simply enter any decimal value (positive or negative) and the calculator will instantly convert it to percentage format. The result is automatically rounded to 2 decimal places for readability.
Q1: How do I convert 0.5 to percentage?
A: Multiply by 100: 0.5 × 100 = 50%
Q2: What about very small decimals like 0.0005?
A: The same rule applies: 0.0005 × 100 = 0.05%
Q3: Can I convert percentages back to decimals?
A: Yes, divide by 100. For example: 75% ÷ 100 = 0.75
Q4: How do negative decimals work?
A: The conversion works the same: -0.25 × 100 = -25%
Q5: Why do we multiply by 100?
A: Because percentages are fractions of 100. Multiplying by 100 shows how many parts per hundred the decimal represents.