To find the percentage of marks, you always use the same simple formula:

Percentage of marks=Marks obtainedTotal marks×100\text{Percentage of marks}=\frac{\text{Marks obtained}}{\text{Total marks}}\times 100Percentage of marks=Total marksMarks obtained​×100

Quick Scoop: The Core Idea

You’re comparing what you scored to what you could have scored in total , then converting that into “out of 100”.

  • If you got 80 out of 100:
    80100×100=80%\frac{80}{100}\times 100=80%10080​×100=80%

  • If you got 45 out of 50:
    4550×100=90%\frac{45}{50}\times 100=90%5045​×100=90%

  • If you got 360 out of 500:
    360500×100=72%\frac{360}{500}\times 100=72%500360​×100=72%

Step-by-step: Single Exam

  1. Note your marks obtained (say 67).
  2. Note the total marks (say 80).
  3. Divide: 67÷80=0.837567÷80=0.837567÷80=0.8375.
  4. Multiply by 100: 0.8375×100=83.75%0.8375×100=83.75%0.8375×100=83.75%.

So your percentage is 83.75%.

All Subjects Together (Aggregate)

If you want the percentage for several subjects:

  1. Add all marks you scored.
  2. Add all maximum marks.
  3. Use the same formula:
    Total obtainedTotal maximum×100\frac{\text{Total obtained}}{\text{Total maximum}}\times 100Total maximumTotal obtained​×100.

Example:

  • Subject scores: 72, 65, 81, 90, 77 (all out of 100)
    • Total obtained = 72+65+81+90+77=38572+65+81+90+77=38572+65+81+90+77=385
    • Total maximum = 5×100=5005×100=5005×100=500
    • Percentage = 385500×100=77%\frac{385}{500}×100=77%500385​×100=77%

Quick HTML Table Examples

Here are some ready-made examples in HTML table form (you can paste this into an HTML file or editor):

html

<table border="1">
  <tr>
    <th>Marks Obtained</th>
    <th>Total Marks</th>
    <th>Percentage</th>
  </tr>
  <tr>
    <td>80</td>
    <td>100</td>
    <td>(80 / 100) × 100 = 80%</td>
  </tr>
  <tr>
    <td>45</td>
    <td>50</td>
    <td>(45 / 50) × 100 = 90%</td>
  </tr>
  <tr>
    <td>360</td>
    <td>500</td>
    <td>(360 / 500) × 100 = 72%</td>
  </tr>
</table>

And for multiple subjects:

html

<table border="1">
  <tr>
    <th>Subject</th>
    <th>Marks Obtained</th>
    <th>Total Marks</th>
  </tr>
  <tr>
    <td>Maths</td>
    <td>72</td>
    <td>100</td>
  </tr>
  <tr>
    <td>Science</td>
    <td>65</td>
    <td>100</td>
  </tr>
  <tr>
    <td>English</td>
    <td>81</td>
    <td>100</td>
  </tr>
  <tr>
    <td>History</td>
    <td>90</td>
    <td>100</td>
  </tr>
  <tr>
    <td>Geography</td>
    <td>77</td>
    <td>100</td>
  </tr>
  <tr>
    <th colspan="1">Totals</th>
    <td>385</td>
    <td>500</td>
  </tr>
  <tr>
    <th colspan="3">
      Percentage = (385 / 500) × 100 = 77%
    </th>
  </tr>
</table>

Tiny Story-style Example

Imagine Riya gives five tests, each out of 20:

  • She scores: 18, 15, 16, 20, 19.
  • Total obtained = 18+15+16+20+19=8818+15+16+20+19=8818+15+16+20+19=88.
  • Total maximum = 5×20=1005×20=1005×20=100.
  • Percentage = 88100×100=88%\frac{88}{100}×100=88%10088​×100=88%.

That’s all there is to how to find percentage of marks —divide by the total, then multiply by 100. If you share your actual marks (like “I got 430 out of 600”), I can calculate the exact percentage for you.