Porcentagem
Calculadora de porcentagem
valor x %
%
Utilities
Percentage
discount and variation
Calculate any percentage value in seconds without installing anything. Compute discounts, markups, percentage change, and what X% of Y equals — perfect for students, sales, and everyday quick math.
How to use
- 1Pick the right calculator: 'What is X% of Y', 'Percentage change', or 'Discount or markup'.
- 2Enter the percentage and the base value in the fields shown on each card.
- 3For percentage change, enter the initial and final values — the tool calculates the increase or decrease.
- 4For discount or markup, choose the operation type from the dropdown before checking the result.
- 5The result updates automatically as you type — no button to click.
Practical examples
What is 10% of 250?
Type 10 in the percentage field and 250 in the value field: the result is 25.
Price went from $120 to $150
Use 'Percentage change' with 120 as the initial value and 150 as the final value: that's a 25% increase.
$100 item with a 15% discount
Select 'Discount', enter 100 as the base value and 15 as the rate: the final price is $85.
Frequently asked questions
How do I calculate a 15% discount on a value?
Enter the base value and type 15 in the percentage field. Select 'Discount' and the result appears automatically.
How do I calculate the percentage change between two values?
Use the 'Percentage change' section, enter the initial and final values. The tool calculates the percentage increase or decrease.
Can I use this on my phone?
Yes, the calculator works on any device — phone, tablet, or computer — directly in the browser.