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Calculate percentages, percentage of a number, increase/decrease and more.
Percentages show up everywhere — a 10% restaurant tip, a 30% off sale, your exam score, a salary raise negotiation, tax on a purchase. The math isn't hard, but doing it mentally is annoying. This calculator handles all four common situations.
Common mistake: A $120 item with 20% off — most people subtract 20 from 120 and get $100. Wrong. The answer is $96. Use the Add / Subtract % tab to get it right, every time.
Use the % of a Number tab. Enter 20 in the percentage field and your number in the second field. Click Calculate. For example, 20% of 5,000 = 1,000.
Use What % is X of Y? Enter your obtained marks as X and total marks as Y. If you scored 412 out of 500, your percentage is 82.4%.
Use % Change. Enter your old salary as the first value and new salary as the second. The calculator shows the exact percentage increase.
Use Add / Subtract %. Enter the original price, select "Add", and enter the tax rate. You'll see the final price with tax included and the tax amount separately.
Yes. All four modes accept decimal inputs and calculate accurately without rounding errors.
They're the same thing. Percentage change covers both — a positive result means an increase, a negative result means a decrease.
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