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How do you calculate the percentage of a number?

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Jake Adams is an academic tutor and the owner of Simplifi EDU, a Santa Monica, California based online tutoring business offering learning resources and online tutors for academic subjects K-College, SAT & ACT prep, and college admissions applications. With over 14 years of professional tutoring experience, Jake is dedicated to providing his clients the very best online tutoring experience and access to a network of excellent undergraduate and graduate-level tutors from top colleges all over the nation. Jake holds a BS in International Business and Marketing from Pepperdine University.

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Expert Answer

Set up the equation so that each side is a part over the whole. That way your piece of missing information with be either the part or the whole on either side. For instance, if you want to know 38% of 52, the equation would be 38/100 = x/52, where x is the number you're solving for.

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Question

How do you calculate a percentage in Excel?

wikiHow Staff Editor
Staff Answer
This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.

wikiHow Staff Editor

Staff Answer

To calculate a basic percentage in Excel, use the “Percent Style” button under the Home Tab>Number Group and apply it to the column where you’d like to display the percent (e.g., column D). Use the formula C2/B2 in column D to calculate the what percentage of the number in column B is represented by the number in column C. For example, if column A specifies your product, column B might represent the total produced and column C might be the total shipped. If B is 75 and C is 69, enter C2/B2 in column D to get 92%.

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How can you calculate a percentage using a calculator?

wikiHow Staff Editor
Staff Answer
This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.

wikiHow Staff Editor

Staff Answer

One of the quickest ways to calculate a percentage with a calculator is to convert the percentage into a decimal and multiply it by the number you’re trying to find the percentage of. For example, if you want to find 60% of 285, enter 285 x .6 into your calculator to get 171. To figure out what percentage a number represents out of a whole, divide the smaller number by the larger one and convert the resulting decimal number into a percent. For example, 171 ÷ 285 = 0.6 = 60%.

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Question

How do I calculate 9% of $456.39?

Community Answer

Convert the percent to a decimal like so: 0.09. Then multiply that decimal by 456.39.

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I know that 1325 is 12.2% of the total. How do I calculate the total?

Donagan

Top Answerer

Divide 1325 by 0.122.

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My child got 447 marks in 450, so what percentage did he get?

Community Answer

He got a little over 99.333...%. Divide 447 by 450. The answer was a decimal which is then converted into a percent by moving the decimal point two places to the right.

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Question

I saved 185.73 an income is 2456.85 a year. How do I calculate the percentage I saved?

Community Answer

Divide 185.73 by 2456.85. The answer was a decimal which is then converted into a percent by moving the decimal point two places to the right. You've saved 7.559%

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What is the percentage of $177.78 of $444.45?

Donagan

Top Answerer

Divide the first number by the second number, and multiply by 100.

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How can I calculate the percent change between two numbers?

Community Answer

To calculate the percentage increase, work out the difference (increase) between the two numbers you are comparing. Then divide the increase by the original number and multiply the answer by 100. If your answer is a negative number, then this is a percentage decrease.

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Question

How do I add a percentage of a number to the number?

Community Answer

First you need to calculate what number the percentage is equal to. Do this by converting the percentage to a decimal and then multiplying the decimal by the original number. Now you can add this answer to the original number.

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Last month I had 1604 items, and this month I have 1804 items. What is my % increase?

Community Answer

The difference (200) divided by the original (1604). 200 / 1604 = .1246, which is roughly 13%.

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How do I calculate 10.24%?

Community Answer

To calculate 10.24% of a number, change it to a decimal first: 0.1024. Then multiply that decimal by the number in question.

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Question

What is the discount on a buy two, get two free deal?

Donagan

Top Answerer

A 50% discount (not counting any sales tax you might have to pay on the two free items).

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Question

I have 100 surveys, 8 surveys came back negative. What is my percent of positive surveys?

Donagan

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100 - 8 = 92. 92 of 100 means 92 ÷ 100 = .92 = 92%.

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How do I calculate 2.29 percent of 8000?

Community Answer

Change the percent to a decimal by moving the decimal point to the left two places, one for each zero in 100%, like so: 0.0229. Then multiply this decimal by 8000.

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Question

Production cost = $30. Retail cost = x. I need to make a 40% profit margin on x. How do I calculate x? I am a new business owner, and am having difficulty calculating retail cost.

Donagan

Top Answerer

You want a 40% profit above $30. 40% of $30 is $12 (30 x 0.4), so your retail price should be $30 + $12.

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Question

How would I calculate the percentage of change between the original price I paid for a stock and its current value (the price is now lower)?

Community Answer

Find the difference between the two prices, divide the difference by the original price, and then multiply your answer by 100.

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Question

In a school there are 60% females, and out of the total, 70% are science students. How many are female science students?

Donagan

Top Answerer

Female science students are 60% x 70% = .6 x .7 = .42 = 42% of all students.

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98 is 175% of what number?

Community Answer

Multiply 98 by 100, then divide by 175. Or divide 98 by 1.75.

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I know 40% of my house value is $212,000. How do I find the 100% value of my house?

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Multiply 212,000 by 100, then divide by 40. Or divide 212,000 by 0.4.

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I have a total of 76 days of class. I have to maintain 80 percent attendance. How absent can I be?

Donagan

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You have to attend class at least 61 days.

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Question

What is 50% of 50% of 50%?

Donagan

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Multiply .5 by .5 by .5 (or ½ by ½ by ½).

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Question

Jamie and Peter pick 4.5 kg of cherries and 3 kg of berries. What percentage of the total fruit they pick is berries?

Donagan

Top Answerer

4.5 + 3 = 7.5. Berry percentage is 3 ÷ 7.5 = 0.4 = 40%.

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Question

How do I calculate the percentage of profit?

Donagan

Top Answerer

Subtract the cost of production or acquisition from the selling price, then divide that difference by the cost of production or acquisition. That will give you a decimal number, which you can multiply by 100 to get a percentage.

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Question

If 189 was subtracted from 3177, how do I figure what percentage that is?

Community Answer

First, you have to set up a fraction: 189 out of 3177 is what percentage of 100%? The fraction would appear as 189/3177 equals x/100, and you have to solve for X. To do so, you multiply 189 by 100 and then divide by 3177, which gives you 5.9%.

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Question

What is 85% of 224 hours?

Iamaditya

Community Answer

Just calculate (85/100)*224 = 190.4 hours = 190 hours and 24 min.

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Question

If 4.09% is = 11.5, what is 96% = ?

Donagan

Top Answerer

It would actually be 4.09% and 95.91%. Divide 11.5 by 4.09% (11.5 ÷ 0.0409) to find the full amount, and then multiply that amount by 95.91% (0.9591).

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Question

If there are a total of 29 students in a class, and six have blue eyes, what percentage of the students have blue eyes?

Iamaditya

Community Answer

Total students = 29 and students with blue eyes = 6. Therefore the percentage of students with blue eyes is (6/29)*100 which is equal to 28.689%.

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Question

If I did 350 problems and got 45 wrong, what is my percentage of accuracy?

Community Answer

Your percentage of accuracy would be 87 percent. To find the percentage on a test, you take the number correct and divide by the total, then round to the nearest hundredth.

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Question

Edward takes 8 oranges while Sam takes 4 oranges. What portion/percentage did Edward get?

Community Answer

Add Edward's 8 oranges and Sam's 4 oranges to get a total of 12 oranges. Then take Edward's 8 oranges and divide by the total oranges of 12. So, 8 / (8+4) = 8 / 12 = 0.666667. To get the percent you multiply that by 100 to get 66.67%.

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