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Find X% of a number, what percent X is of Y, or percentage increase and decrease between two values — perfect for discounts, GST, tips, exam scores, and profit margins.
Financial
Generated on May 23, 2026
Find a percentage of a number. Example: 15% of 200 = 30.
Find X% of a number, what percent X is of Y, or percentage increase and decrease between two values — perfect for discounts, GST, tips, exam scores, and profit margins.
A percentage calculator handles the three most common percentage operations: finding a percentage of a number, determining what percentage one number is of another, and calculating percentage increase or decrease between two values. It is essential for shopping discounts, tax calculations, financial analysis, academic grades, profit margins, tip calculations, statistical comparisons, and countless other real-world problems. Every business and consumer decision involving fractions of a whole eventually reduces to a percentage calculation, which is why mastering this operation (or having a reliable tool for it) pays off in daily life.
Formula
X% of Y = (X ÷ 100) × Y | % change = ((New − Old) ÷ Old) × 100Percentages feel like the simplest math you ever learned until you're standing in a shop staring at a "40% off, then extra 20% on the discounted price" tag, trying to figure out whether the cashier is rounding in their favour. Or you're verifying a 17% GST line on a Daraz invoice. Or your boss just said "I'm giving you a 12% raise" and you're quietly calculating whether that actually beats this year's inflation. Percentages run through every Pakistani household's daily money decisions — markups at the mandi, school fee hikes, mobile data top-up taxes, the markup on a credit card balance you carried forward. The honest truth: most adults can do 10% in their head but stumble on 17%, and almost nobody intuitively understands the difference between "5 percentage points" and "a 5% increase". This calculator handles the three operations that cover 95% of real situations — find X% of Y, find what percent X is of Y, and find the change from old to new value. Use it for one minute before you accept any number a salesman, bank, or boss puts in front of you.
A percentage calculator handles the three most common percentage operations: finding a percentage of a number, determining what percentage one number is of another, and calculating percentage increase or decrease between two values. It is essential for shopping discounts, tax calculations, financial analysis, academic grades, profit margins, tip calculations, statistical comparisons, and countless other real-world problems. Every business and consumer decision involving fractions of a whole eventually reduces to a percentage calculation, which is why mastering this operation (or having a reliable tool for it) pays off in daily life.
Percent literally means 'per hundred'. Dividing X by 100 converts the percentage to a decimal fraction, which you then multiply by the target number. For percentage change, the denominator is always the original (starting) value.
Instant-reference table for percentages of common amounts — useful for tips, taxes, discounts, and mental estimates.
| Value | 5% | 10% | 15% | 17% (GST) | 20% | 25% | 50% |
|---|---|---|---|---|---|---|---|
| 100 | 5 | 10 | 15 | 17 | 20 | 25 | 50 |
| 500 | 25 | 50 | 75 | 85 | 100 | 125 | 250 |
| 1000 | 50 | 100 | 150 | 170 | 200 | 250 | 500 |
| 5000 | 250 | 500 | 750 | 850 | 1,000 | 1,250 | 2,500 |
| 10000 | 500 | 1,000 | 1,500 | 1,700 | 2,000 | 2,500 | 5,000 |
| 25000 | 1,250 | 2,500 | 3,750 | 4,250 | 5,000 | 6,250 | 12,500 |
| 50000 | 2,500 | 5,000 | 7,500 | 8,500 | 10,000 | 12,500 | 25,000 |
| 100000 | 5,000 | 10,000 | 15,000 | 17,000 | 20,000 | 25,000 | 50,000 |
Pakistani GST (17%) on a 10,000 PKR invoice = 1,700 PKR — your bill becomes 11,700 PKR.
A 15% restaurant tip on a 2,500 PKR dinner = 375 PKR.
A 30% sale on a 5,000 PKR shirt means you pay 3,500 PKR — saving 1,500 PKR.
Going from 20% to 25% is 5 percentage points, but a 25% relative increase — this distinction trips up even seasoned analysts.
A PKR 5,000 shirt at 30% off — discount = PKR 1,500, you pay PKR 3,500.
Exam score 72 out of 90 → 72 ÷ 90 × 100 = 80%.
Price rose from $40 to $52 → percentage increase = 30%.
17% GST on a PKR 10,000 invoice = PKR 1,700 tax, total PKR 11,700.
Jump to a ready-made conversion — useful for quick reference and sharing:
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