Percentage calculator
Turn marks into a percentage, find what percent one number is of another, measure the increase or decrease between two values, and work out the marks you still need to hit a target — all in one tool.
Pick a mode, type your numbers, and see the answer with a clear step-by-step working. Everything is plain arithmetic, computed in your browser — useful for SEE, NEB and university results.
What do you want to find?
What you scored.
Full / maximum marks of the exam.
Percentage scored
77%
385 out of 500 marks
Marks obtained
385
Out of
500
Lost marks
115
Percentage
77%
| Formula | % = (obtained ÷ total) × 100 |
| Substitute | (385 ÷ 500) × 100 |
| Result | 77% |
Pure arithmetic, computed in your browser. Results are rounded to two decimal places; “Marks needed” caps a score at the remaining full marks, so an unreachable target is flagged. Always confirm grade boundaries and rounding rules with your board or institution.
One formula, four everyday questions
Every mode rests on the same idea — a part divided by a whole, times 100 — applied to marks, ratios, change and goals.
Marks & ratios
Percentage = (part ÷ whole) × 100. Use it for marks out of a total, or to see what share X is of Y.
Change
Percentage change = ((new − old) ÷ old) × 100. A positive value is an increase, a negative one a decrease.
Target marks
Multiply the grand total of all papers by your target %, then subtract what you have already scored to get the marks still needed.
Percentages, answered
How do I calculate the percentage of marks?+
Divide the marks you obtained by the total (maximum) marks and multiply by 100. For example, 385 out of 500 is (385 ÷ 500) × 100 = 77%. The 'Marks %' mode of this calculator does exactly this and also shows how many marks were lost.
How do I find what percentage one number is of another?+
Divide the part (X) by the whole (Y) and multiply by 100: % = (X ÷ Y) × 100. For instance, 45 is (45 ÷ 180) × 100 = 25% of 180. Use the 'X of Y' mode for this.
How is percentage increase or decrease calculated?+
Subtract the old value from the new value, divide by the old value, then multiply by 100: % change = ((new − old) ÷ old) × 100. A positive result is an increase and a negative result is a decrease. Going from 250 to 300 is a 20% increase.
How many marks do I need to reach a target percentage?+
Add the maximum marks of all papers (completed plus remaining) to get the grand total, multiply by your target percentage to get the total marks required, then subtract what you have already scored. The 'Target %' mode does this and flags the target as unreachable if it would need more than full marks in the papers that are left.
How does this calculator handle rounding?+
Results are rounded to two decimal places for display only; the underlying calculation uses full precision. Schools, boards and universities may round differently or apply their own grade boundaries, so always confirm the official rule.
Does percentage equal GPA or grade in Nepal?+
No. A percentage is the raw share of marks scored. Boards such as the NEB and the SEE convert marks into letter grades and a Grade Point Average using fixed grading scales, which are not a simple percentage. Use this tool for the raw percentage, then apply your board's grading scale separately.
Sources & data note
Based on standard percentage arithmetic — percentage = (part ÷ whole) × 100, percentage change = ((new − old) ÷ old) × 100. Displayed results are rounded to two decimal places. Letter grades and GPA in Nepal follow board grading scales (NEB / SEE) that are not a simple percentage; values here are indicative, so verify the official rounding and grading rule that applies to you.