Percentage Calculator
Calculate what a percentage of a number is, and reverse percentages.
About the Percentage Calculator
Percentages are the grammar of everyday numbers — exam scores, salary increments, sales tax, zakat, grade cutoffs and market changes all speak in percentages. This calculator gives you instant percentage-of-number answers plus the reverse direction, so you never have to fumble with paper or mental math again.
A percentage is simply a fraction with a denominator of 100: 15% means 15 out of every 100. To find 15% of 200, multiply 200 by 0.15. The calculator does exactly this in real time, and because it updates as you type, you can quickly test many combinations — useful when comparing commission structures, tax slabs or discount tiers.
Beyond the basic 'what is X% of Y', percentages appear in reversed forms that confuse most people: if a price rose from Rs. 1,000 to Rs. 1,200, the increase is 20%, not 200%. Knowing how to frame the same change as a percentage is essential when evaluating salary raises, rental increases or investment returns.
In Pakistan, percentages matter in very concrete ways: the 18% sales tax on many goods, the 2.5% zakat rate on qualifying wealth, the markup on car financing, and the annual inflation figures reported by the Pakistan Bureau of Statistics. This calculator handles the arithmetic behind all of them instantly.
For students, the tool is a fast check on exam percentages; for professionals, it validates proposal numbers; for shoppers, it converts discount claims into actual amounts. Whatever the context, the answer appears the moment you type — no calculation button, no waiting.
How to calculate percentages
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Enter the number you want a percentage of, such as 200.
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Enter the percentage, such as 15.
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Read the result — 15% of 200 is 30 — instantly as you type.
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To reverse the calculation, enter a known part and total to find the percentage. This is useful for exam scores: marks obtained ÷ total marks × 100.
Frequently Asked Questions
What is a percentage?
A percentage is a fraction expressed out of 100. For example, 15% means 15 out of every 100, so 15% of 200 is 30.
How do I calculate a percentage increase?
Subtract the original value from the new value, divide by the original value, and multiply by 100. If an item rises from Rs. 1,000 to Rs. 1,200, the increase is (200 ÷ 1000) × 100 = 20%.
How do I convert a fraction to a percentage?
Divide the numerator by the denominator and multiply by 100. For example, 45 out of 60 is (45 ÷ 60) × 100 = 75%.
What is the percentage difference between two numbers?
The percentage difference compares two values relative to their average: (|A − B| ÷ ((A + B) ÷ 2)) × 100. It is used when neither number is clearly the 'original' — for example comparing prices in two shops.