Percentage Formula

The core formula

In plain English: divide what you scored by the maximum possible, then multiply by 100. The result is your percentage score. Round to two decimal places for official applications; cut-offs are often decided at the second decimal.

Five worked examples

1. 1

   5 subjects, each out of 100

   (438 ÷ 500) × 100 = 87.6%

2. 2

   Single paper out of 80

   (62 ÷ 80) × 100 = 77.5%

3. 3

   Semester aggregate out of 1000

   (712 ÷ 1000) × 100 = 71.2%

4. 4

   Unit test out of 25

   (22 ÷ 25) × 100 = 88%

5. 5

   FSc annual exam out of 1100

   (935 ÷ 1100) × 100 = 85%

Related formulas

CGPA to percentage (CBSE 10-point scale)

Percentage = CGPA × 9.5. Example: 8.4 × 9.5 = 79.8%. Open the CGPA calculator →

GPA to percentage (4.0 scale)

Percentage = (GPA ÷ 4.0) × 100. Example: 3.5 GPA = 87.5%. Open the GPA calculator →

Percentage increase

((New − Old) ÷ Old) × 100. From 80 to 100 = 25%. Open the increase calculator →

Attendance percentage

(Attended ÷ Total) × 100. Most Indian universities require ≥ 75%. Open the attendance planner →

CBSE Best of Five

(Sum of top 5 subjects ÷ 500) × 100. Used for Class 10 aggregate eligibility. Open the CBSE calculator →

Weighted grade

Σ (grade × weight) ÷ Σ weight. Used when assignments carry different weightings. Open the weighted grade calculator →

Frequently asked questions

What is the percentage formula?

The percentage formula is: Percentage (%) = (Obtained Marks ÷ Total Marks) × 100.

How do I calculate percentage of marks?

Divide your obtained marks by the total maximum marks, then multiply the result by 100. For example, 438 out of 500 is (438 ÷ 500) × 100 = 87.6%.

How do I convert CGPA to percentage?

Multiply your CGPA by 9.5 on the CBSE 10-point scale. A CGPA of 8.4 equals 8.4 × 9.5 = 79.8%.

How do I convert GPA to percentage on a 4.0 scale?

Divide your GPA by 4.0 and multiply by 100. A 3.5 GPA equals (3.5 ÷ 4.0) × 100 = 87.5%.

What is the CBSE Best of Five rule?

The CBSE Best of Five takes your marks in the five highest-scoring subjects (out of your six Class 10 subjects), sums them, and divides by 500 before multiplying by 100.

How do I calculate aggregate percentage across semesters?

Add your obtained marks from every semester, add the total maximum marks from every semester, then apply the percentage formula to those two grand totals.

How do I calculate percentage increase?

Percentage increase = ((New Value − Old Value) ÷ Old Value) × 100. From 80 to 100 it is ((100 − 80) ÷ 80) × 100 = 25%.

How do I calculate attendance percentage?

Attendance percentage = (Classes Attended ÷ Total Classes Held) × 100. Most Indian universities require at least 75%.

Is percentage the same as percentile?

No. Percentage is an absolute score out of 100. Percentile is a relative rank showing the fraction of test takers scoring at or below you.

What percentage is a first-class (distinction)?

In most Indian universities a first-class is 60% or above, and a first-class with distinction is typically 75% or above.