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How to Calculate Percentages - Calculating Percentages Easily

Updated on June 26, 2012

Calculating and working out percentages made easy!

Percentages really aren't that difficult, yet they are so useful and so many people cannot easily work them out! This lens shows you how to work out a percentage so you'd never need worry at school or work again!

Below is first of all how to calculate a basic percentage. Then there is the slightly more complicated calculations - calculating increase and decrease, then decreasing a number by a percentage.

So without further ado...here's how to calculate and work out percentages!

Calculating Percentages

Working out the percentage of a number

Lets say were working out 30% of $40. You must understand that 30% is equilivant to 30/100, and also to 0.3.

  • So we multiply $40 * 30/100 = $12

Remember 30% and 30/100 is the same as 0.3

Alternatively, you can simply divide the amount (in this case $40) by 100 to get 1%, and then multiply it by the percentage of the amount you require e.g:

  • $40/100= 0.4

Then multiply 0.4 by 30%:

  • 0.4*30 = $12

Use which ever way is easiest for you to remember, I prefer the second way!

And that's it, How to calculate percentages!

Calculating a Percentage Increase

How to work out the percentage a number has increased by

If price increases from $50 to $54. What is the % increase?

Firstly, we need to know the difference, in this case its $4:

  • $54-$50 = $4

Then divide the difference (54-50) by the initial amount.

  • So it is 4 / 50 = 0.08

Then simply multiply to get a nice percentage:

  • 0.08 * 100 = 8%

Increasing and Decreasing a Number by a Percentage

Working out the amount to increase or decrease a number by

Say you work in a shop and you know that you sold 10,000 items this year and your boss says he wants to see a 20 percent increase next year. How much do you need to sell next year?

I find the quickest way to do this is multiply the amount, in this case 10,000 by 1.2 (the .2 is the 20%) so:

  • 10,000*1.2 = 12,000

You can do this backwards as well to calculate a decrease. To calculate a 20% decrease simply imagine 1 as 100%. So take 20% off 100% and you get 80%, or 0.8.

  • 10,000*0.8 = 8,000

Or we could find 20% of 10,000 and then add it to 10,000:

  • 20/100 (0.2) * 10000 = 2000

Percentage comments and tips - How To Calculate Percentages

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    • profile image

      Johnb68 2 years ago

      Outstanding post, you have pointed out some fantastic points, I as well think this is a very great website. gfgcfekkdabe

    • profile image

      anonymous 3 years ago

      Obviously i'm slow, but even after reading this I'm not figuring out how to calculate the increase percent from 10,000 to 12,000 to be 20%? I know it's 20% but why or how, do I just drop the 1?

    • profile image

      anonymous 3 years ago

      How would i figure out 35% of $43.59

    • profile image

      anonymous 4 years ago

      @anonymous: 37.5%

    • profile image

      anonymous 4 years ago

      what if my budget is $160,000 per month and I am making $220,000 per month what is my percentage over budget

    • profile image

      anonymous 4 years ago

      this was easy!! thxs

    • profile image

      anonymous 4 years ago

      @anonymous: 38%

      .57 / 1.48 = .38 x 100 = 38%

    • profile image

      anonymous 4 years ago

      @RhondaAlbom: ya

    • profile image

      anonymous 4 years ago

      @anonymous: Fat shit dat was a chat fat basterd

    • profile image

      anonymous 4 years ago

      @anonymous: Fat shit dat was a chat fat basterd

    • profile image

      anonymous 4 years ago

      Well I was no good at maths especially at fractions decimal and most of all Percentages! But it became easy when I tried this website to how to work out and this is the most helpful site! ðð thank you

    • profile image

      anonymous 4 years ago

      one thing is sale at $1.49c and the cost is $.92c =.57c he make profft. whate is the percent is $ .57c

    • profile image

      anonymous 4 years ago

      I found this site to be very helpful and simplified the way to work out percentages. I have added it to my "Bookmarks" tab in case I need it again, the more I do it the easier it becomes.

      Thanks

      JP

    • maryseena profile image

      maryseena 4 years ago

      good for learning percentage

    • profile image

      anonymous 4 years ago

      @anonymous: It was easy for me :)

    • profile image

      anonymous 4 years ago

      this was very helpful. once i did the calculations myself it was a no brainer!!!!

    • profile image

      anonymous 4 years ago

      @anonymous: Using the formula above, here is how I would calculate it SC.

      270/100 = 2.7, so 2.7 units is equal to 1%,

      so the question is how many 1%s make up 18 units...

      18/2.7 = 6.666, so you had 6.666% units returned

    • profile image

      anonymous 4 years ago

      this did not help me even though i am in gifted

    • profile image

      anonymous 4 years ago

      @anonymous: Well 18 out of 270 items have been returned. So like the question by mkc, calculating what percentage 18 is of 270, will give you the percentage of items returned.

    • profile image

      anonymous 4 years ago

      Ok I have an amount that I need to pay out according to the percent of participation how do I calculate that? Thank you

    • profile image

      anonymous 4 years ago

      @anonymous: you do it again ill call governor

    • profile image

      anonymous 4 years ago

      @anonymous: 25percent is equivelant to a 1/4 so u devide by 4

      EASY

    • profile image

      anonymous 4 years ago

      really bad

    • profile image

      anonymous 4 years ago

      You deliver 270 items & return 18. How do you calculate the % returned?

    • profile image

      anonymous 4 years ago

      @anonymous: 35%

    • profile image

      anonymous 4 years ago

      How do you figure out what percentage 35 out of 500 is?

    • profile image

      anonymous 4 years ago

      So on the last part of this article. say that your boss wants a 25% increase in sales. How would the equation look then?

    • profile image

      anonymous 4 years ago

      Total staff 14

      over 5 day period

      14 worked 2 days

      4 worked 4 days

      2 worked 1 day

      How do I calculate the percentage to allocate by day

    • profile image

      anonymous 4 years ago

      3253 person, 760 females. what is the percentage of the female

    • profile image

      anonymous 4 years ago

      I have 44 units, 26 of those units are used, what percentage do I have remaining of the 18 unused?

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      anonymous 4 years ago

      @anonymous: You received 70% off your dinner. Simply subtract 88.08 from 289.31 which gives you 201.23. Divide 201.23 by 289.31 which will give you right about 70%.

    • profile image

      anonymous 4 years ago

      @anonymous: £289.31- £88.08 = £201.23 savings made

      £201.23 / £289.31 x 100 = 69.56% you saved ( savings divided by cost )

      Your bill was 100% - 69.56% = 30.44% you paid of the bill price

    • profile image

      anonymous 4 years ago

      I'm trying to figure out what percent I saved. My total bill was 289.31 I only paid 88.08. how would I do that? Thanks

    • profile image

      anonymous 4 years ago

      thnx bro, I have maths exam tomorrow

    • profile image

      anonymous 4 years ago

      @anonymous: (1185/15,800) x 100 = your answer

    • profile image

      anonymous 4 years ago

      9500 is 85% of x

    • profile image

      anonymous 4 years ago

      @anonymous: Wow, I guess the author is so good that you knew how to do it before even finishing the article, I'm glad it helped you so quickly.

    • profile image

      anonymous 4 years ago

      %appdata%

    • profile image

      anonymous 4 years ago

      25% of a total is 13 best way to calculate

    • profile image

      anonymous 4 years ago

      @anonymous: 24

    • profile image

      anonymous 4 years ago

      How do i figure out the percent if I bought something for 15,800.00 before taxes were added and the taxes are 1,185.00 what is the percent of tax that i paid?

    • profile image

      anonymous 4 years ago

      @anonymous: No

    • profile image

      anonymous 4 years ago

      "You must understand that 30% is equilivant to 30/100, and also to 0.3."

      >equilivant

      Stopped reading there.

    • profile image

      anonymous 4 years ago

      There is a sale...20% off all original prices. The sale price of a shirt is £19.20. Calculate the original price.

    • profile image

      anonymous 4 years ago

      1oo percent attendance at school but what is there attendance if they have 8 days of school

    • profile image

      anonymous 4 years ago

      @anonymous: freight is allocated by weight of the item, not according to cost of the item, so in this case you need to provide weight of each item, You find weight of item/weight of shipment and multiply it by freight charged for that shipment

    • profile image

      anonymous 4 years ago

      What if u are trying to find out a percentage off a bar graph??

    • profile image

      anonymous 4 years ago

      If you are trying to add together percentages to give you an over all percentage: add all of the percentages you already have, then divide by the amount of percentages. i.e %100 + %100 + %89 + %92 + %100 / 5 = %96.2

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      anonymous 4 years ago

      @anonymous: How would you find 10% of $469.20?

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      anonymous 4 years ago

      @anonymous: it is the number of people doing the activity (3) divided by the number of people there (8). So 3/8=0.375. You then convert the answer to a percentage by multiplying by a hundred (i.e. 0.375 * 100 = 37.5). Therefore 37.5% of those attending did the activity

    • profile image

      anonymous 4 years ago

      OK, say we are importing three items, one is 1000pcs and cost $2.50, another is 2500 pcs and cost $0.48, the remaining one is 500pcs and cost $1.90, the freight cost is $600 for all in one shipment. How do I apportion the cost of freight in proportion to each item to work out the landed cost of each item fairly?

    • profile image

      anonymous 4 years ago

      @anonymous: Hmm.. Very helpful and useful. Gotta keep that in my wallet!

    • profile image

      anonymous 4 years ago

      how do I work out % of people attending a group activity eg I have 8 people and only 3 did ithe activity, what is the percentage of people who didi the activity?

    • profile image

      anonymous 4 years ago

      @anonymous: very nice it's simple way to solve percentage

    • profile image

      anonymous 4 years ago

      @anonymous: 85.7

      24+4=28

      100/28=3.57

      all fruit value is 3,57 of 100%

      3.57 (value of each fruit) X 24 (pieces of fruit) is 85.68 Apples and the remaing (oranges) is 4X3.57 or 14.28=99.96 (use more decimals if needed.

    • profile image

      anonymous 4 years ago

      I am so dense - I want to find out a percentage of say I have

      24 apples and 4 oranges what is the percentage of apples to oranges or oranges to apples? Don't understand how to figure this out dumb de dum dum

    • profile image

      anonymous 4 years ago

      I wish you had included percentages beyond 100%. The decimal placement gets a little trickier for me when the increase or decrease is higher than 100%...

      Thanks for this lesson~!

      I appreciate you.

    • profile image

      anonymous 4 years ago

      its really nice.

      helped me lot

      thks

    • profile image

      anonymous 4 years ago

      Thanks! It's super easy now! :)

    • profile image

      anonymous 4 years ago

      Thanks really helped. Thanks!

    • profile image

      anonymous 4 years ago

      Nice. A lot easier than I thought. Thanks.

    • profile image

      anonymous 4 years ago

      you guys are all shit heads

    • profile image

      anonymous 4 years ago

      Great..

    • profile image

      anonymous 4 years ago

      Very Helpful... I was thinking it was a nightmare.. Once I started getting 5 answers right in a row.. I said.. I GOT THIS.. Thanks!

    • profile image

      anonymous 4 years ago

      Super and Easy method in less amount of Time........ Thanks...

    • profile image

      anonymous 4 years ago

      @anonymous: Evidently, you're not so good at grammar, either. Maybe the problem is you?

    • profile image

      anonymous 4 years ago

      hi, nice work, seeing that most of us on Squidoo are in internet marketing can you do some examples on clicks to conversions,ex: 2000 clicks and 10 conversions or sales, what is the conversion rate. Thanks keep up the good work I love math.

    • profile image

      anonymous 4 years ago

      calculate the amount increased or decreased

    • profile image

      anonymous 4 years ago

      This is not a very good method at all it is totally sh** for people who aren't good at maths like me there is a more simple method

    • profile image

      anonymous 4 years ago

      how to calculat fractions into decimals and percents

    • profile image

      anonymous 4 years ago

      fractions to decials and percents

    • profile image

      anonymous 4 years ago

      @anonymous: how do you work out what 425 is as a percentage???

    • profile image

      anonymous 4 years ago

      This is great, simple and easy, thank you.

    • profile image

      anonymous 4 years ago

      i have done 200 orders, on that i have 1 error, How to calculate the percentage?

    • profile image

      anonymous 4 years ago

      I have a land contract that started April 1st 2011 for 21,000 at4%. Ihave made 19 payments of 450.00 per month. I'm wanting to know what my pay off would be as of Nov.1st 2012. can someone help? Thank You.

    • Linda BookLady profile image

      Linda Jo Martin 4 years ago from Post Falls, Idaho, USA

      Very helpful... I can calculate percentages, but know lots of people who can't.

    • profile image

      anonymous 4 years ago

      Need to know simple way of working out gross and net on a sales item.

      Know cost, and know selling price. This thicko wants to know how to do it PROPERLY. It's been a rough calculation up until now!

    • profile image

      anonymous 4 years ago

      glad to know that exciting method to calculate messages

    • profile image

      anonymous 4 years ago

      What would be the percentage if a score was 114 out of 126?

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      anonymous 4 years ago

      @anonymous: Hi, £79.75

      Hope this helps..

      On a mobile phone calculator:

      Take lower number (25) as this is % you want to find out (x) by the amount (319) (x) (100) as this works out percentage (=) to get amount £ (79.75) ..

      25 x 319 x 100 = 79.75

      or on calculator which is easier:

      Take the amount you want to work out (319) times this (x) by the percentage (25) you want (%) press (=) and you have answer 79.75 far easier to remember

      319 x 25 % = 79.75

      All the best

      Sheena

    • profile image

      anonymous 4 years ago

      @anonymous: 23.33%

      you will end up repaying 37,000

      7000/30000 x 100 = 23.33333.

      If you think about it, you are repaying almost 25% (1/4) more than you are borrowing. 30,000/4 = 7500.

    • profile image

      anonymous 4 years ago

      If I borrow £30,000. to be paid by 37 x monthly payments of £1,000.

      What interest am I paying?

    • profile image

      anonymous 4 years ago

      @anonymous: I think your question is asking for the percentage change between these two figures, 5,361,407 and 6,789,547. If this is the case, then the percentage increase is 26.637% roughly.

    • profile image

      anonymous 4 years ago

      @arnold-mweyola: In fact, Soph is correct (if the question is worded properly). The question is more complicated that it originally seems. We are not, in fact, trying to work out 30% of 120,000 instead, we are trying to work out what the original figure was when another 30% was added.

      The way we do this is by saying to ourselves that the figure of 120,000 is 100% of the original value + 30%, thus, 130% of the original value.

      130% can also be expressed as '1.3' (when divided by 100).

      Therefore the equation 120,000/1.3 will give us the correct starting figure i.e. 92,307.69. We have successfully worked out what the '100%' value was.

    • profile image

      anonymous 4 years ago

      I have a question If my mortgage was $1455.32 a month at 5.85% how much will my payment be if they lower it at a 2%. or my new payment is $1268.49 what persantage will that be

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      anonymous 4 years ago

      @anonymous: Your answer is $631.52.

      Turn the percentage into a decimal, 60% = 0.6 and make it the denominator, i.e. do the sum 378.91 / 0.6 = 631.52.

      You can check your work by calculating 60% of 631.52, which is done using 60/100 x 631.52 = 378.912 (your original amount).

    • profile image

      anonymous 4 years ago

      @anonymous: The answer is £239.25.

      25% is the same as a quarter, so divide 319 by 4 = 79.75.

      You then want to take 25% off as a discount, therefore, 319 - 79.75 = 239.25.

      Another way to work out 25% of 319 is 25/100 x 319 = 79.75.

    • profile image

      anonymous 4 years ago

      Jolene,

      The answer to your question is that you will receive a 30.8% price reduction. All you do is 158/512 = 0.308 and then multiply by 100. I assume the new price you will pay for your product is $354. If you think about it, that's slightly more than 2/3 of the original price. You are getting almost a third off.

      Regarding a percentage of 139, what percentage are you trying to find? I can tell you this however, whatever percentage you are trying to find, simply multiply that number by 1.39. If you want 20% of 139, multiply 20 by 1.39 = 27.8. If you want 60% then do 60 x 1.39 = 83.4.

    • profile image

      anonymous 4 years ago

      how to calculate

      £319-25% of discount ???

      Please help me I don't get this

    • profile image

      anonymous 4 years ago

      @anonymous: calculate the price after the savings and subtract that from the original price. Devide the difference by the bigger of the two prices ($512) Move the decimal two points to the right...I think!

    • profile image

      anonymous 4 years ago

      I like the formulas and this is very handy however I am trying to figure out the percentage of savings I will be getting with $158 off the price of an item that is originally marked at $512. Is it one of the formulas above and I am just misreading it or is there a formula someone could share with me. Thanks

    • profile image

      anonymous 4 years ago

      @anonymous: 39.69

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      anonymous 4 years ago

      How do you find the percentage of 139

    • profile image

      anonymous 4 years ago

      @anonymous: This would be a 120% increase.

    • profile image

      anonymous 4 years ago

      this helped me so much love this website

    • profile image

      anonymous 4 years ago

      what is 19% of 49gms

    • profile image

      anonymous 4 years ago

      @anonymous: 30% of £28 is £8.40

      £28+£8.40=£36.40

    • profile image

      anonymous 4 years ago

      @anonymous: Tabitha, it's 10*100/710=1.4%

    • profile image

      anonymous 4 years ago

      @anonymous: Tabitha, it's 10*100/710=1.4%