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How To Calculate Percentage Of Marks ( 5199 )


How To Calculate Percentage Of Marks

How To Calculate Percentage Of Marks

Calculating the percentage of marks is a common practice in education to evaluate and understand your performance in various subjects or courses. This calculation helps you determine the proportion of marks you’ve obtained out of the total marks available. In this comprehensive guide, we’ll walk you through the steps to calculate the percentage of marks and provide examples to illustrate the process.

Step 1: Understand the Context:

Before calculating the percentage of marks, ensure you have the necessary information:

  1. Total Marks: The maximum marks attainable for the exam, test, or assignment.
  2. Marks Obtained: The actual marks you scored in that exam, test, or assignment.

Step 2: Use the Percentage Formula:

The formula to calculate the percentage of marks is straightforward:

Percentage of Marks=Marks ObtainedTotal Marks×100

Example 1: Calculating Percentage of Marks:

Let’s say you scored 85 out of 100 in a mathematics test. To calculate the percentage of marks obtained:

Percentage of Marks=85100×100=85%

Step 3: Interpret the Result:

The calculated percentage of marks represents the proportion of the total marks you achieved. It indicates how well you performed in comparison to the maximum marks possible.

Example 2: Interpreting Percentage of Marks:

If you scored 75 out of 90 in a science exam:

Percentage of Marks=7590×100=83.33%

In this case, you obtained approximately 83.33% of the total marks available.

Additional Considerations:

  1. Rounding: Depending on your educational institution’s policy, you might need to round the calculated percentage to the nearest whole number or a specific decimal place.
  2. Decimal Conversion: If you’re working with decimal marks, make sure to convert them to the appropriate scale (out of 100) before calculating the percentage.
  3. Weighted Percentage: In some cases, different exams or assignments might carry different weightages. Calculate the weighted percentage by multiplying each exam’s percentage by its weightage and then summing them up.

Example 3: Weighted Percentage Calculation:

If your math test was worth 50% of your total grade and your science test was worth 30%, and you scored 85 in math and 70 in science:

Weighted Percentage=(0.5×85)+(0.3×70)=77.5%

Scenario 1: Weighted Average Percentage:

In some cases, different components of your academic performance, such as exams, assignments, and projects, might have varying weightages. To calculate your overall weighted average percentage, follow these steps:

  1. Determine the weightage (as a percentage) of each component.
  2. Calculate the percentage of marks obtained for each component using the basic formula.
  3. Multiply the percentage obtained in each component by its weightage.
  4. Sum up the weighted percentages to get your overall weighted average percentage.

Example: Weighted Average Percentage:

  • Math Exam (40% weightage): Scored 85 out of 100.
  • Science Project (30% weightage): Scored 90 out of 100.
  • English Assignment (30% weightage): Scored 70 out of 100.

Weighted Average Percentage=(0.4×85)+(0.3×90)+(0.3×70)=80.5%

Scenario 2: Calculating Improvement Percentage:

Calculating the percentage improvement involves comparing your performance in two different assessments. The formula to calculate percentage improvement is:

Percentage Improvement=New Value−Old ValueOld Value×100

Example: Calculating Improvement Percentage:

  • Math Test 1: Scored 60 out of 100.
  • Math Test 2: Scored 75 out of 100.

Percentage Improvement=75−6060×100=25%

Scenario 3: Cumulative Percentage Calculation:

When calculating the cumulative percentage of marks for multiple subjects or courses, you’ll need to aggregate the marks obtained across all subjects and calculate the cumulative percentage based on the total available marks.

Example: Cumulative Percentage Calculation:

  • Math: Scored 90 out of 100.
  • Science: Scored 80 out of 100.
  • History: Scored 70 out of 100.

Total marks available: 3×100=300

Total marks obtained: 90+80+70=240

Cumulative percentage: 240300×100=80%

Scenario 4: Grading Scales and Equivalent Percentages:

Different educational institutions and systems may use various grading scales. Some institutions provide equivalent percentage ranges for each grade. For example:

  • A: 90-100%
  • B: 80-89%
  • C: 70-79%
  • D: 60-69%
  • F: Below 60%

Use these ranges to convert letter grades to approximate percentages.

Practical Applications:

  1. Scholarship Eligibility: Many scholarships have minimum percentage requirements for eligibility.
  2. University Admissions: Universities often consider academic performance, including percentage of marks, for admissions.
  3. Class Rankings: Percentages help determine class rankings and honors.
  4. Self-Assessment: Calculate your average percentage to track your academic progress.
  5. Parent-Teacher Conferences: Parents can understand their child’s academic performance using percentages.
  6. Setting Goals: Use percentages to set academic goals for improvement.
  7. Employment: Some job applications require providing your academic performance in terms of percentages.


Calculating the percentage of marks is a versatile skill that’s widely used in education to assess and communicate academic performance. By understanding variations such as weighted averages, improvement percentages, cumulative percentages, and the context of grading scales, you can gain a comprehensive understanding of how percentages are applied in education. Accurate percentage calculations enable you to make informed decisions, set goals, and communicate your academic achievements effectively.

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