Percentage Calculator
Percentage Calculator
Percentage CalculatorHow this tool works
What it accepts, how to use it, and where your input is processed.
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How this tool works
What it accepts, how to use it, and where your input is processed.
Exam Marks, Negative Marking & Percentage Engine
Accurately evaluate your raw marks, negative penalty deductions, and net scores across major national competitive exams. Also includes an all-purpose math utility for calculating percentage increases, mark percentages, and numerical changes.
Official Exam Schemes
Pre-configured with official marking structures for SSC CGL, UPSC Prelims, IBPS/SBI, NEET UG, and JEE Main.
Accuracy & Attempt Analytics
Instant calculation of raw scores, accuracy rates, and visual distribution of attempted vs incorrect answers.
General Math Modes
Instant calculation of X% of Y, marks obtained percentages, price growth, and percentage differences.
Official Competitive Exam Negative Marking Matrix
Reference table for marking patterns enforced in national entrance and government recruitment examinations:
| Exam Name | Total Qs | Marks / Correct | Penalty / Wrong | Penalty Ratio |
|---|---|---|---|---|
| SSC CGL / CHSL Tier-1 | 100 | +2.00 | -0.50 | 1/4th (25%) |
| SSC CGL Tier-2 (Paper-1) | 130 | +3.00 | -1.00 | 1/3rd (33.3%) |
| UPSC CSE Prelims GS-1 | 100 | +2.00 | -0.66 | 1/3rd (33.3%) |
| IBPS PO / SBI PO Prelims | 100 | +1.00 | -0.25 | 1/4th (25%) |
| NEET UG | 180 | +4.00 | -1.00 | 1/4th (25%) |
| JEE Main | 75 | +4.00 | -1.00 | 1/4th (25%) |
Frequently Asked Questions
How is negative marking calculated in government exams?
In competitive exams, your net score is calculated as: Net Score = (Correct Answers × Marks per Question) - (Wrong Answers × Negative Marking Penalty). For example, in SSC Tier-1 (+2 correct, -0.50 wrong), if you attempt 80 questions with 70 correct and 10 wrong: Raw Score = 70 × 2 = 140, Penalty = 10 × 0.50 = 5, resulting in a Net Score of 135 out of 200.
Are marks deducted for unattempted or skipped questions?
No. In almost all standard competitive exams (SSC, UPSC, Banking, NEET, JEE), unanswered or skipped questions carry zero marks and incur zero penalty deduction.
What is the difference between 1/4th and 1/3rd negative marking?
A 1/4th penalty (25%) means you lose 0.25 of the marks allotted for a question per wrong answer (e.g. 0.50 penalty on a 2-mark question in SSC Tier 1). A 1/3rd penalty (33.33%) deducts 0.66 marks on a 2-mark question (as in UPSC Civil Services) or 1.00 mark on a 3-mark question (as in SSC Tier 2).
How do I calculate my overall accuracy rate?
Accuracy Rate (%) = (Correct Answers ÷ Total Attempted Questions) × 100. Competitive exam mentors recommend maintaining an accuracy rate above 85% to mitigate the compounding score drain from negative penalties.
How do I calculate percentage increase or decrease?
Percentage Change = ((New Value - Original Value) ÷ Original Value) × 100. If the resulting number is positive, it reflects a percentage increase; if negative, it reflects a percentage decrease.
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