Percentage Calculator

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All Calculators

Specialised tools for every percentage calculation need

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% of Number
What is X% of Y?
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% Increase
Growth rate between values
↓
% Decrease
Reduction between values
🏷
Discount
Sale price & savings
$
Markup
Selling price from cost
🧾
Tax
Sales tax & VAT

What is a Percentage?

A percentage is a way of expressing a number as a fraction of 100. The word comes from the Latin per centum, meaning "by the hundred." Percentages appear everywhere — shopping discounts, tax rates, exam scores, investment returns.

Percentage = (Part ÷ Whole) × 100
Shopping discount
20% off $85
= 17
Sales tax
8.5% tax on $120
= 10.2
Restaurant tip
15% tip on $65 bill
= 9.75
Business pricing
50% markup on $40
= 20

Popular Calculations

Quick answers to the most-searched percentage questions

What is 15% of 200?
= 30
What is 20% of 50?
= 10
What is 10% of 1000?
= 100
What is 25% of 80?
= 20
What is 5% of 500?
= 25
What is 30% of 150?
= 45
What is 50% of 200?
= 100
What is 8.5% of 100?
= 8.5

Frequently Asked Questions

How do I calculate a percentage of a number?
Multiply the number by the percentage divided by 100. For example, 15% of 200 = 200 × 0.15 = 30.
How do I calculate percentage increase?
Use the formula: ((New − Old) ÷ Old) × 100. From 80 to 100: ((100 − 80) ÷ 80) × 100 = 25% increase.
What is the percentage formula?
The core formula is: Percentage = (Part ÷ Whole) × 100.
How do I find what percentage one number is of another?
Divide the first by the second, then multiply by 100. 30 is what % of 200? (30 ÷ 200) × 100 = 15%.
How do I calculate a discount percentage?
Formula: ((Original − Sale) ÷ Original) × 100.
What is the difference between percentage and percentage points?
A percentage is a relative measure. Percentage points describe absolute arithmetic difference. If a rate rises from 2% to 3%, that is 1 percentage point but a 50% relative increase.