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Percent Calculator
Calculate percentage of a number, find percentage ratio, add or subtract percentages.
4.8
Calculation Parameters
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Everything About Percentages and Their Calculation
A percentage is one hundredth of a number, denoted by the % sign. Percentages are widely used in daily life: store discounts, taxes, bank rates, statistics.
Basic operations with percentages: finding percentage of a number, finding number by percentage, determining percentage ratio of two numbers, adding and subtracting percentages.
When working with percentages, it is important to remember that percentage always relates to some number. For example, "20% discount" means the price decreases by 20% of the original cost.
Frequently Asked Questions
Answers to common questions about this calculator
To find X% of number A, multiply A by X and divide by 100. Formula: A × X ÷ 100.
Divide the first number by the second and multiply by 100. Formula: (A ÷ B) × 100%.
Multiply the number by (1 + percent/100). For example, to add 15% to 1000: 1000 × 1.15 = 1150.
Multiply the number by (1 - percent/100). For example, to subtract 20% from 1000: 1000 × 0.8 = 800.
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