How do I calculate a discount?

To calculate a 20% discount on $50, select 'What is X% of Y?'. Enter 20 and 50. The result is $10. Subtract this from the original price ($50 - $10) to get the final price ($40).

How do I find percentage change?

Use the 'Percentage Change' mode. Enter the old value and the new value. The tool will tell you if it's an increase or decrease and by what percentage.

Percentage Calculator

Percentage Calculator

Calculate percentages, percentage change, and percentage differences instantly. A versatile tool for shoppers, students, and professionals.

How to Use This Percentage Calculator

1Select the mode of calculation (e.g., 'What is X% of Y?')
2Enter the known values in the input fields
3The missing value is calculated instantly
4Copy the result for your use
5Switch modes to solve different percentage problems

Features

✓Multiple calculation modes (X% of Y, X is what % of Y, etc.)
✓Percentage Increase/Decrease calculator
✓Reverse percentage calculator
✓Instant results as you type
✓Clean, focused interface
✓Copy results to clipboard

Understanding Percentages

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, '%'. Percentages are widely used in finance (interest rates), science, and everyday life (discounts in shops).

Frequently Asked Questions

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Percentage Calculator

Calculate percentages, percentage change, and percentage differences instantly. A versatile tool for shoppers, students, and professionals.

What is

Breakdown

15%

15% of 200 is 30.00

200 × (15 / 100) = 30

is what % of

25%

Breakdown

25%

25 is 25.00% of 100

(25 / 100) × 100 = 25%

Change

from

+50%

Breakdown

Change from 50 to 75 is +50.00%

(75 - 50) / 50 × 100 = 50%

Diff

between

and

22.22%

Breakdown

100

Difference between 100 and 80 is 22.22%

|100 - 80| / ((100 + 80) / 2) × 100 = 22.22222222222222%

Discount

Price

Disc %

Save 20

Breakdown

Pay 80%Save 20%

Original Price: 100, Discount: 20%, Final: 80

100 - (100 × 20 / 100) = 80

Reverse

Original if

inc.

100

Breakdown

100.0

Orig

120

Final

Original value was 100.00 before a 20% increase to 120

120 / (1 + 20 / 100) = 100

Calculate percentages, percentage change, and percentage differences instantly. A versatile tool for shoppers, students, and professionals.

How to Use This Percentage Calculator

1Select the mode of calculation (e.g., 'What is X% of Y?')
2Enter the known values in the input fields
3The missing value is calculated instantly
4Copy the result for your use
5Switch modes to solve different percentage problems

Features

✓Multiple calculation modes (X% of Y, X is what % of Y, etc.)
✓Percentage Increase/Decrease calculator
✓Reverse percentage calculator
✓Instant results as you type
✓Clean, focused interface
✓Copy results to clipboard

Understanding Percentages

Frequently Asked Questions

Verifying status...

Related Tools

Bill Splitter

Split group bills & simplify debts

BMI Calculator

Body Mass Index

Tip & Tax Helper

Calculate tips and tax with total split