Three tools in one - find a percentage of a number, calculate what % one value is of another, or find the percentage change between two numbers.
One page covers all three ways you'll ever need to work with percentages.
Find a value, find a rate, or measure change - every common percentage calculation is covered without switching to a different tool.
Results show up to 4 decimal places where needed, with trailing zeros stripped. Useful for exam scores, financial rates, and GST amounts.
The result updates as you type - no button press needed. The formula is shown alongside the answer so you can verify the logic.
Select one of the three tabs at the top depending on what you want to calculate.
Type the two values into the input fields. Decimals are supported in all modes.
The answer appears instantly along with the full formula so you understand the calculation.
Percentages are one of the most universally used mathematical concepts in daily life, finance, education, and business. The term "percent" comes from the Latin "per centum," meaning per hundred. First systematically used in European commerce in the 15th century, percentages became foundational to banking, taxation, and statistics. In India, percentage calculations feature prominently in competitive examinations, salary negotiations, GST computations, and academic grading systems.
This calculator handles the three most common percentage scenarios: (1) Finding X% of a given number - used for calculating discounts, GST amounts, or exam scores; (2) Finding what percentage one number is of another - used for calculating marks percentage in CBSE or university exams, or profit margins; (3) Finding the percentage increase or decrease between two values - used for comparing monthly sales, inflation rates, or salary hikes. Each calculation type is presented with a clear formula and step-by-step explanation.
Percentage questions appear in virtually every competitive exam in India - SSC CGL, UPSC CSAT, CAT, Bank PO, IBPS, and NEET entrance exams all include percentage-based problems. RBI monetary policy reports, SEBI market statistics, and CBSE mark sheets all express data as percentages. Whether you are calculating a 18% GST on a bill, finding out what percentage marks you scored in Class 12, or working out a 12% salary hike, this tool provides instant and accurate results.