Percentage Calculator

How to Convert Marks to Percentage

The formula is simple: Percentage = (Marks Obtained ÷ Total Marks) × 100

For example, if you scored 456 out of 600: (456 ÷ 600) × 100 = 76%

Percentage Grades Interpretation

• 90–100% — Outstanding / A Grade
• 75–89% — Very Good / B Grade
• 60–74% — Good / C Grade
• 50–59% — Average / D Grade
• Below 50% — Below Average / Failing

Percentage Change Formula

% Change = ((New Value − Original Value) ÷ Original Value) × 100

A positive result means an increase; a negative result means a decrease.