Percentage Calculator
Calculate percentages, percentage increases, decreases, difference, and retail discounts in seconds.
Calculate percentage without confusion
Marks, discount, GST helper, increase/decrease, reverse percentage and profit/loss in one compact tool.
Marks percentage
75%
450 out of 600 marks = 75%.
Obtained marks
450
Marks scored by student.
Total marks
600
Maximum possible marks.
Marks left
150
Difference from full marks.
Grade hint
B range
Only a general helper, not official grading.
Formula and final check
(Obtained marks ÷ Total marks) × 100
- Check values before writing the result in a form, bill or marksheet.
- Use the correct mode for marks, discount, change or profit/loss.
- Confirm whether the final value needs 0, 1 or 2 decimal places.
What this tool does
Solves all common percentage math problems: 'What is X% of Y?', 'X is what % of Y?', and percentage change over time.
When to use it
Use this for shopping discounts, financial margin calculations, exam scores, sales tax, or growth metrics.
Frequently Asked Questions
What percentage calculations can I perform?
Calculate percentage of a number, percentage increase/decrease between two values, discount percentage, and what percentage X is of Y.
How do I calculate percentage discount?
Enter the original price and discount percentage to find the saved amount and final discounted price.