Percentage Calculator

Our 5-in-1 calculator allows you to perform various kind of percentage calculations fast and easily. Whether you're a college student preparing for your exams, you want to calculate your car loan percentage or any other kind of arithmetic, you will definitely find our calculator useful. It's very simple to use! Just choose one type below, enter the required amounts and then click on the calculate button to get the result.

Enter Your Numbers :

Calculate

Solution :

How The Percentage Calculator Actually Works

If you want to know how to manually perform all the above calculations, then check out the formulas below. We have also provided an article that explains in depth the importance of percentages and how they are used in everyday life.

An Introduction On Percentages

Learning percentages may seem like just another boring math lesson, but percentages actually play a significant role in our everyday lives. Percentages can be used in almost every situation, and are an easier way of representing fractions. They allow data with different sizes or totals to be compared to one another, they can quantify the amount of change over a period of time, and they can express an increase or decrease in something. There's no doubt that you will use percentages in your real life, and not just in the classroom, which is why it's important to learn and understand how to use and apply them.

So what is a percentage?

In mathematics, a percentage can be expressed as either a decimal or a fraction, and exists as a number or ratio expressed as a fraction of 100. The % symbol is used to denote or write a percentage. Percentages have important relevance to calculations in the real world, such as when calculating discounts, interest rates, and pay rises. For instance, 50% means 1/2, and 25% means 1/4. Since percentages are out of a hundred, they can be converted between fractions and decimals.

Converting Percent to Decimal

To convert a percent to a decimal, you just simply need to move the decimal point two places to the left. Since percent means per 100 or divided by 100, dividing your percentage by 100 moves the decimal point over two places to the left. To convert back from a decimal to percentage, just perform the opposite operation by multiplying the decimal value, or moving the decimal point over two places to the right.
For example: 24% = .24

Converting Percent to Fraction

Remembering that percentages are out of 100, converting a percent to a fraction isn't too difficult. You can do this by converting the percent to a decimal, and then subsequently to the fraction. For example: 50% = .50 = 50/100

You can then, in turn, reduce the fraction to its simplest form. Some conversions can be a little more difficult however. For example, for 120% = 1.20 = 120/100, which you can then convert to a simpler form and change to a mixed fraction.

To convert from a fraction to a percent, multiply the fraction by 100 to find the percent value.

Calculating Percentages

Since percentages can translate to fractions and decimals, they are fairly easy to calculate in everyday situations. Remembering that percentages are based out of 100 is helpful for determining how much something is when represented in a percentage. Converting your percentage to fractions and decimals can help you determine the amount if you're unsure.

How to Find the Percentage of an Amount

There are many times in everyday life where you will need to figure out what the percentage of an amount is. If you're browsing through a sales rack, you may find a shirt that is 40% off of its original price, and you'll need to figure out what the right price is.

For example, if the shirt originally costs $30.00 and you need to find 40% of that to find what price you'll be paying.

First, 40% can be represented as 40/100 because a percentage is per 100. Multiply this figure by the original price, 30.

40/100 x 30

Simplify your fraction, so you have 1/20.

1/20 x 30 = 30/20

30/20 = $1.50

Take $1.50 off of the original price to find the right amount.

Percentages in Real Life

In real life situations like this, you may need to use your knowledge of percentage and percentage conversion to figure out certain amounts. You can also use percentages to describe situations where the whole varies. Percentages help comparing information in which the totals are different by expressing size, scale, or value. There are many other situations where percentages are used. When you read the nutrition label on a package, for instance, the amount of ingredients found in food is often represented in percentages. Percentages are also used for calculations involved money to represent how the price of quantities increase or decrease by a percentage over time. Changes in price are often represented as a percentage increase, and can be used to express profit, loss, discount, commission, and rates of interest.

Percentages are also used to identify grade amounts in your class. Tests and graded assignments are often scored in the form of a percentage to express what your grade out of 100 is. Using the method makes it easy for people to understand what their score is by giving them the information they need to figure out what they got wrong.

Like we demonstrated before, you may need to know percentage amounts when you go on a shopping trip. Oftentimes, sales items are represented by percentage amounts to express how much off the original price you can buy the item for.

Calculating percentages helps express increases and decreases in the size or total of something, in relation to anything from an interest rate to a food item. Percentages are also great for calculating change, since they provide a result that represents parts per 100. This way they can be easily read and understand, and can be used to compare data information with expressive values.

Conclusion

Percentages may seem like another mathematic function that has no relevance, but the use of percentages in everyday life varies widely. There are plenty of situations that will require knowledge of how to read and calculate percentages effectively. Understanding how to convert percentages to other mathematical forms such as decimals and fractions can also help make the process of understanding percents easier. Many common aspects of life, including money, bank rates, and grades, are expressed through the form of a percentage, which is why it's important to learn how to use percentages.

For more information check out:
http://en.wikipedia.org/wiki/Percentage