Calculator
Percentage Calculator
Calculate percent of a number, marks percentage, discount price, salary increase, percentage decrease, attendance percentage, and part-of-total values with clear formulas.
Calculate Percent of a Number
Discounts, tax, commission, markup
Calculate What Percent One Number Is
Marks, progress, budget share, ratios
Calculate Percentage Increase or Decrease
Growth, loss, price change, comparison
Percent result
Click Calculate Percent Value
The percent amount, discount value, and markup value will appear here.
Part of total result
Click Calculate Part Percent
The answer and alternate wording will appear here.
Change result
Click Calculate Change
Direction, percentage change, and value difference will appear here.
Online Percentage Calculator for Marks, Discounts, and Growth
Use this calculator to quickly find percent of a number, part of total, percentage increase, percentage decrease, marks percentage, discount percentage, and simple business growth calculations.
Common Percentage Formulas
- Percent of a number: percentage / 100 x value.
- Part of total: part / total x 100.
- Percentage change: (new value - old value) / old value x 100.
- Discount price: value - percent amount.
- Markup price: value + percent amount.
Common Use Cases
- Marks percentage and exam score calculation.
- Discount amount and final price calculation.
- Salary increase or decrease percentage.
- Attendance, quiz score, and progress percentage.
Related Tools
Percentage Calculator FAQ
Percentage Questions and Examples
How do I calculate percentage of a number?
Multiply the number by the percentage and divide by 100. Example: 10% of 250 = 250 x 10 / 100 = 25.
How do I calculate percentage increase?
Subtract the old value from the new value, divide by the old value and multiply by 100. Example: From 100 to 150 = (150 - 100) / 100 x 100 = 50%.
How do I calculate percentage decrease?
Subtract the new value from the old value, divide by the old value and multiply by 100. Example: From 200 to 150 = (200 - 150) / 200 x 100 = 25%.
Can I use this for marks and discounts?
Yes. This calculator works for marks percentage, discounts, increases, decreases and part-of-total calculations.
I scored 32 marks out of 45. What is my percentage?
Your percentage is 71.11%. Calculation: 32 / 45 x 100 = 71.11%.
I scored 425 marks out of 500. What is my percentage?
Your percentage is 85%. Calculation: 425 / 500 x 100 = 85%.
What marks are needed for 80% out of 500?
You need 400 marks. Calculation: 500 x 80 / 100 = 400.
What percentage is 25 of 100?
25 is 25% of 100. Calculation: 25 / 100 x 100 = 25%.
What percentage is 120 of 300?
120 is 40% of 300. Calculation: 120 / 300 x 100 = 40%.
What is 10% of 500?
10% of 500 is 50. Calculation: 500 x 10 / 100 = 50.
What is 25% of 800?
25% of 800 is 200. Calculation: 800 x 25 / 100 = 200.
What is 50% of 1000?
50% of 1000 is 500. Calculation: 1000 x 50 / 100 = 500.
What is 75% of 400?
75% of 400 is 300. Calculation: 400 x 75 / 100 = 300.
What is 5% of 2000?
5% of 2000 is 100. Calculation: 2000 x 5 / 100 = 100.
What is a 20% discount on ₹1000?
A 20% discount on ₹1000 is ₹200, making the final price ₹800. Calculation: 1000 x 20 / 100 = 200; 1000 - 200 = 800.
What is a 25% discount on ₹1500?
A 25% discount on ₹1500 is ₹375, making the final price ₹1125. Calculation: 1500 x 25 / 100 = 375; 1500 - 375 = 1125.
How much is 15% added to ₹1000?
15% of ₹1000 is ₹150, so the total becomes ₹1150. Calculation: 1000 x 15 / 100 = 150; 1000 + 150 = 1150.
How much is 10% removed from ₹500?
10% of ₹500 is ₹50, so the remaining amount is ₹450. Calculation: 500 x 10 / 100 = 50; 500 - 50 = 450.
If my salary increases from ₹50,000 to ₹55,000, what is the percentage increase?
The increase is 10%. Calculation: (55,000 - 50,000) / 50,000 x 100 = 10%.
If my salary decreases from ₹60,000 to ₹54,000, what is the percentage decrease?
The decrease is 10%. Calculation: (60,000 - 54,000) / 60,000 x 100 = 10%.
What is my attendance percentage if I attended 90 out of 100 classes?
Your attendance percentage is 90%. Calculation: 90 / 100 x 100 = 90%.
If 12 out of 15 questions are correct, what percentage is correct?
The percentage is 80%. Calculation: 12 / 15 x 100 = 80%.
30% of a number is 90. What is the number?
The number is 300. Calculation: 90 x 100 / 30 = 300.
40% of a number is 200. What is the number?
The number is 500. Calculation: 200 x 100 / 40 = 500.