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Percentage Calculator

All types of percentage calculations in one place

Percentage
%
of Number

Percentage โ€” Why We Use It and How It Works

Percentage is literally "per hundred" โ€” it's a way of expressing a number as a fraction of 100. We use it constantly: exam scores, discounts, tax rates, interest rates, salary hikes, body fat, inflation โ€” pretty much everything that involves comparing a part to a whole ends up being expressed as a percentage at some point.

Despite being so common, percentage calculations trip people up surprisingly often โ€” especially percentage change, where people frequently calculate the wrong direction. Our calculator handles the four most common types: finding X% of a number, converting marks to percentage, calculating percentage change, and finding what percentage one number is of another.

X% of Y = (X / 100) ร— Y
Marks % = (Marks Obtained / Total Marks) ร— 100
% Change = ((New โˆ’ Old) / Old) ร— 100

How to Calculate Percentage of Marks

For board exams or university results: add up all marks obtained, add up total maximum marks across all subjects, then divide and multiply by 100. Simple enough, but students often make the mistake of averaging percentages across subjects instead of calculating from total marks โ€” which gives a slightly different (and incorrect) result when subjects have different maximum marks.

For example, if you scored 450 out of 500 in Class 12, your percentage is 90%. Not the average of individual subject percentages. Always calculate from the raw totals.

Percentage vs Percentile โ€” Not the Same Thing

This confusion comes up a lot in competitive exams. Percentage is your score as a fraction of total marks. Percentile tells you what percentage of other candidates scored below you. So a 95 percentile in JEE means you scored better than 95% of all test takers โ€” it says nothing about your actual marks percentage. In competitive exams with large variation in difficulty and cutoffs, percentile is far more meaningful than percentage.

How to calculate percentage increase in salary?
Use the percentage change formula: ((New Salary โˆ’ Old Salary) / Old Salary) ร— 100. So if you were earning โ‚น40,000 and got a raise to โ‚น46,000, the increase is ((46000 โˆ’ 40000) / 40000) ร— 100 = 15%. Our "% Change" tab handles this directly.
What percentage is needed to pass in most Indian boards?
Most Indian state and CBSE boards require 33% to pass in individual subjects. However, competitive college admissions often require 50-60% aggregate, and top colleges have cutoffs of 95%+. For professional courses like engineering and medicine, entrance exam performance matters far more than board percentages.
Is 60% a good score in graduation?
It depends heavily on context. For most government jobs, 60% is the minimum for general category. For most private sector jobs and campus placements, 60% is typically acceptable but not competitive. For postgraduate admissions and higher studies abroad, 65-70%+ is generally recommended. The relevance of percentage also varies a lot by field โ€” in some technical roles, skills matter far more than marks.