Percentage Calculator
Calculate marks percentage, percentage of a number, and percentage change.
Calculate marks percentage, percentage of a number, and percentage change.
Marks Percentage
What is X% of Y?
Percentage Change
How to use Percentage Calculator
Calculate marks percentage, percentage of a number, and percentage change.
- Select the settings and calculation mode that match your task.
- Enter your own values in the labelled fields; use consistent units and dates.
- Calculate, review the breakdown and correct any flagged inputs before using the result.
Formula and calculation method
Marks percentage = obtained marks ÷ total marks × 100. Percentage change = (new − original) ÷ original × 100.
Use the result breakdown to check the inputs and understand which factors changed the outcome.
Worked example
Obtaining 880 out of 1,100 marks gives 880 ÷ 1,100 × 100 = 80%.
Check before using the result
Check input units, dates and the selected rule or policy. A valid mathematical calculation does not replace the applicable institution’s rules.
Frequently asked questions
How does Percentage Calculator calculate the result?
Marks percentage = obtained marks ÷ total marks × 100. Percentage change = (new − original) ÷ original × 100.
Which settings should I use?
Choose the scale, dates, units and rule that match your records. Where a custom mode is provided, enter the values from your applicable policy instead of assuming the example preset applies.
Can I use the result for an official decision?
Use the result to plan and check your figures. Confirm official requirements, records or quotations with the relevant institution.