Percentage Calculator

PERCENTAGE CALCULATION

Example: 15% of $ 300 is how much?


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PROPORTION

Example: $ 300 is what percentage of $ 5.000?


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PERCENTAGE INCREASE

Example: $ 1.500 with an increase of 10% results in?


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PERCENTAGE REDUCTION

Example: Reduction from $ 1.500 to $ 1.000 - what is the discount


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How to use the Online Percentage Calculator:

Calculate percentages quickly and accurately with our online tools. Choose the type of calculation you need—percentage of a value, proportion between values, percentage increase, or percentage decrease. Enter the required numbers, click "Calculate," and view the result instantly. Online percentage calculators make calculations faster, clearer, and error-free.

How to Calculate a Percentage?

Calculating a percentage allows you to determine how much a specific portion represents out of a total value.
For example, to find 15% of $300, convert 15% to decimal form (0.15) and multiply:

0.15 × 300 = $45

Therefore, $45 represents 15% of $300.

To simplify the process, use our online percentage calculator:

  1. Enter the desired percentage;
  2. Enter the total value;
  3. Clique em "Calcular" para obter o resultado.

How to calculate Percentage Proportion?

Percentage proportion helps compare a specific value to a larger total, expressed as a percentage.
For example, to find what percentage $300 represents of $5,000:

300 ÷ 5,000 × 100 = 6%

This means $300 corresponds to 6% of $5,000.

Use our online proportion calculator:

  1. Enter the value you want to compare;
  2. Enter the total value;
  3. Clique em "Calcular" para visualizar o resultado.

How to calculate Percentage Increase?

Percentage increase shows how much a value grows relative to its original amount.
For example, if you start with $1,500 and apply a 10% increase:

1,500 × 0.10 = $150

1,500 + 150 = $1,650

Use our percentage increase calculator:

  1. Enter the initial value;
  2. Enter the increase percentage;
  3. Clique em "Calcular" para ver o novo valor.

How to Calculate Percentage Decrease?

Percentage decrease (or discount) shows how much a value is reduced.
For example, if an item originally cost $1,500 and is now $1,000:

1,500 – 1,000 = $500 (reduction)

500 ÷ 1,500 × 100 = 33.33%

This means the item was discounted by 33.33%.

Use our percentage decrease calculator:

  1. Enter the initial value;
  2. Enter the decrease amount;
  3. Clique em "Calcular" para ver o novo valor.

Frequently Asked Questions

What is a percentage?

A percentage is a way of expressing a number as a part of 100. It is a common tool used to compare values or represent a portion of a whole. We typically use the symbol “%” to indicate a percentage.

For example, imagine a parking lot with 100 cars, and 25 of them are white. In this case, we can say that 25% of the cars are white.

Where are percentages used in practice?

Percentages are used in a wide range of everyday situations. They help calculate discounts when shopping, determine interest on overdue payments, compare economic indicators, and even measure body fat percentage in health assessments.

How do I calculate a percentage?

To calculate a percentage, divide the part (the smaller value) by the whole (the larger value) and multiply the result by 100. This gives the percentage equivalent of the portion relative to the total.
For example, if you have 50 apples and want to know what percentage are red, and 20 of them are red, calculate:
20 ÷ 50 = 0.4
0.4 × 100 = 40%
So, 40% of the shares in the portfolio belong to a single company.

Why are percentages important?

Percentages are essential in many practical situations. When you shop and find a product with a 20% discount, you are benefiting from a price reduction based on a percentage. When you tip at a restaurant, you often calculate a percentage of the total bill.

In finance and business, percentages help interpret price changes in stocks, calculate taxes, compare investment returns, and analyze economic data. Understanding how percentages work is essential for making informed financial decisions in various aspects of daily life, from personal budgeting to evaluating financial opportunities.

How do I calculate percentages using the online calculator?

First, enter the number for which you want to calculate a percentage. Next, select the multiplication option (×), enter the percentage value, and finally press the percentage button (%).
The calculator will process the operation automatically and provide an accurate, fast result.

Which is correct: "percent" or "percentage"?

Both "percent" and "percentage" are correct, but they are used differently.
In English:

  • Percent is used with a number: 25 percent, 8 percent, 100 percent.
  • Percentage is used without a specific number: a large percentage, a small percentage, the percentage increased.

Both terms refer to the same concept but are applied in different contexts.