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A How to Find 80 Percent of a Number

A How to Find 80 Percent of a Number

How to Find 80 Percent of a Number

It’s easy to share a graphic that shows 80 percent of any number. However, there’s a technical equation that can let you find the exact percentage of that number. Since it’s easy to knock out an 80 percent of any number, this is a handy trick to know.

Percent

You find here several easy percentage calculators with examples. You can use our easy percent calculators to compute percentages. You can use comma or dot as a decimal separator. You don't have to use thousands separators because this calculator treats both comma and dot as a decimal separator. In order to calculate percentages online, click the button. The result appears on the next page. If there are errors, the result field will be empty. Try this handy online tool to check your problems on percentages. Find the percentage change between two numbers or calculate a percent of a value before and after. Our purpose is to offer the best online percentage calculator with fast and useful answers. Whenever you need to calculate percentages or find out how to calculate a percentage, this free website will help you. We hope that you enjoy the time you spend on the website. Please feel free to send us your comments or suggestions.

One percent is one hundredth. We use a % to indicate it. So 5 percent is the same as 5%, 0.05, 5/100 or five hundredths. It is that simple! That is nice, but we usually do not only use percentages. Sometimes we want to show the ratio between 2 numbers. For example: what is 40% of 20? That's 40 hundredths of 20, so if we share 20 cookies in 100 equal pieces (good luck with that!), 40 of those pieces are our 40% of 20 cookies. Let's count: 40/100 * 20 = 8. A little trick does apply here: if you want to divide by a hundred, just move the comma two places to the left. In our calculation, 40/100 * 20 we could also do so: (40 * 20) / 100 (it is the same). 40 * 20 is 800. Move the comma in 800 2 places to the left and you get 8.00. Enter these values at the top of the page, 40 and 20. Then you get "40% of 20 is 8". In another case you want to indicate, for example, how many percent a number has descended or increased. For example, if you have 10 apples and you eat 2 of them ... Then you have lost 20% apples. Why? Because 8 is 80% of 10. All apples were 100%, now we still have 80%, so the number of apples has descended by 20% (because 100 - 80 = 20). Use our percent increase tool for this. (Source: percentage-calculator.uk)

Problem

Do you have problems with simplifying fractions? The best way to solve this is by finding the GCF (Greatest Common Factor) of the numerator and denominator and divide both of them by GCF. You might find our GCF and LCM calculator to be convenient here. It searches all the factors of both numbers and then shows the greatest common one. As the name suggests, it also estimates the LCM which stands for the Least Common Multiple.

Now let's solve a problem with an unknown denominator. We spent 30 percent of our pocket money on bubble gum (we never said we're great investors). We bought 12 sticks for $1 each. So we know that $12 was 30 percent of our total budget. How much money did we have before we almost literally blew it all away? Let's start with our formula: (Source: www.omnicalculator.com)

 

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