How Do You Calculate Percentage?

13 Answers

Anonymous Profile
Anonymous answered
Percentages have confused everyone at some point in their lives.  In actual fact, they’re quite simple.  The process of calculating a percentage is just working something out ‘out of 100’.  The actual symbol for percentage (%) is mathematical jargon that means ‘out of 100’.  There are many taught ways to calculate percentages and some percentages are easier to work out than others.

Firstly, the basics:  50% is half of the thing (Jenny and Jim sliced the pie in half and each had 50%)

25% is a quarter, half of a half (Jenny and Jim sliced the second pie into four quarters, making each slice worth 25% of the whole thing),75% is three quarters (25 x 3 = 75) (Greg stole three slices of the second pie, which was 75%)

And finally, 100% is the whole.  The entirety of the figure/object.  (Jim had gone home when Jenny’s last pie was finished.  She had the whole 100% of it to herself).

To work out 10% of something, simply divide the initial figure by 10.  For example: To calculate 10% of 365, work out 365 ÷ 10 which is 36.5 (if dividing by 10, simply move the decimal point one figure to the left).  By taking this 10% figure you can then work out any of the percentages that end in 5 or 0.  20% = 10% x 2 and 5% = 10% ÷ 2

For a more precise percentage such as 46%, if you are not fussed about being precise, simply work out 50% (half) and subtract an extra little bit.  If you need to be precise, then the easiest way to work out 46% is to find what 1% is.  Divide your initial figure by 100 (simply move the decimal point two steps to the left and voila, 1%), then multiply that by the percentage figure you desire.For example:  You wish to know 46% of 56.  Step 1:  56 ÷ 100 =0.56.  Step 2:  0.56 x 46 = 25.76.  46% of 56 = 25.76
Jordan Mark Profile
Jordan Mark answered

To solve any percentages always follow this rule of thumb

1) look for totals

2) look for the what the number is being compared to?

3) look at the question and see what it asking for

4 write your equation as compare number / total number * 100 = x%

in your question 

You can use this SGPA Calculator for further calculations : 

ly = 50,000
ty = 250,000

what your question ask for the increase from last year income So

we know that 250,000 is bigger than 50,000 So the following is done

So ty/ly * 100 = x%

250,000/50,000 *100 = x%

5 *100 = x%

500% = x - we just move the % symbol over to the other side of the equation.

I hope this helps

Anonymous Profile
Anonymous answered
16 is 40% of what number?
Arun Raj Profile
Arun Raj answered
Percent is an abbreviation for the Latin word 'per centum' which means 'for every 100.' 15 percent means 15 out of every hundred. To find percentage of a certain number, divide the given amount by the total amount and multiply the answer by 100. For instance, if you get 40 marks out of 50, the percentage is 80. 40/50x100=80 percent.

To change percentage into numbers, divide the number by 100 and multiply by the total number. For instance, if you have scored 80 percent and want to know what your score is, out of the total marks of 60, you have to do this: 80/100x50=40
Anonymous Profile
Anonymous answered
(X / Y)*100 =  Z

     Where  X=Given amound
  Y=Total amound
  Z=Answer in %
eg:  You have got 45 mark in an exam out of 50. Then your percentage is  90
  (45/50)*100=   90 %

  by   sebi
Oddman Profile
Oddman answered
Many calculators have a "%" key that will multiply by a number taken to be a percentage.

You can convert the percentage to a fraction (divide it by 100%) and multiply fractions in the usual way.

You can convert the percentage to a decimal number (move the decimal point 2 places left and lose the % sign), then multiply decimal numbers in the usual way.

You can type the expression into a Google search box and let it evaluate it for you.
Max Culbreth Profile
Max Culbreth answered
The easiest way to calculate a percentage to me is to take the percentage turn it into a decimal and multiply.

For Example.

1% of 321
1%=.01 so just multiply .01 by 321 and you will get the ammount

.01 times 321 = 3.21
Therefore 1% of 321 is 3.21

Hope I helped!!
Anonymous Profile
Anonymous answered
You divide what it is out of and what you got then times that by 100 the numbers you get before the decimal is the percentage

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