Percentage Calculator

Four quick calculators for everyday percentages: exam marks, discounts, salary increases and more.

What is X% of Y?

Percent

Of number

300

Obtained marks (X)

Total marks (Y)

81.82%

From

25% increase

Original price

Discount

Price after discount: 2,000 (you save 500)

›How do I calculate my marks percentage?

Divide obtained marks by total marks and multiply by 100. For example, 450 out of 550 is 450 ÷ 550 × 100 = 81.82%.

›How do I calculate percentage increase?

Subtract the old value from the new value, divide by the old value and multiply by 100. From 80 to 100 is a 25% increase.

›How do I calculate a discount?

Multiply the price by the discount percent and divide by 100, then subtract it from the price. 20% off 2,500 is 2,500 − 500 = 2,000.