What is the NET Score Calculator?
The NET Score Calculator works out your final exam score when the test applies negative marking. In many competitive exams, each correct answer earns marks while each wrong answer subtracts a penalty. This tool combines both to give you the net result you actually receive.
How to use it
Enter four values: the number of correct answers, the number of wrong answers, the marks awarded per correct answer, and the penalty deducted per wrong answer. The calculator multiplies and subtracts to produce your net score, and also breaks down your gross marks and total deduction.
The formula explained
The core equation is:
$$\text{Net} = (\text{correct} \times \text{markPerQ}) - (\text{wrong} \times \text{penaltyPerQ})$$
First, gross marks are the correct answers times the marks per question. Then the deduction is the wrong answers times the penalty per question. Subtracting deduction from gross gives the net score. Unattempted questions are ignored because they neither add nor subtract marks.
Worked example
Suppose you got 40 correct and 10 wrong, with +4 marks per correct answer and −1 per wrong answer. Gross = \(40 \times 4 = 160\). Deduction = \(10 \times 1 = 10\). Net = \(160 - 10 = 150\):
$$\text{Net} = (40 \times 4) - (10 \times 1) = 160 - 10 = \mathbf{150}$$
FAQ
Do unattempted questions count? No. Only correct and wrong answers affect the score; leaving a question blank has no impact.
Can the net score be negative? Yes. If the penalty from wrong answers exceeds your earned marks, the net score will be negative.
What if penalty is a fraction like 1/3? Just enter 0.333 (or your exam's exact fractional value) in the penalty field and the calculator handles it.
