How to work out percentages
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Most math concepts can be simple if one understands what the question really is...
'Percent' is a two parts word and comes from the latin PER CENTUM translated it means 'Per one hundred' in actual facts the word really explains what it wants you to calculate...
A simple way of calculating Percentages is to use the 3 step method:
- determine what 100% of amount =
- 1% of amount = amount divided by 100
- ?%of amount = amount divided by 100 times ?% =
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Lets plug in some numbers into the formula. It's easier to comprehend when there are actual numbers in a formula...
What is 15% of 500?
1)100% of amount = 500
2)1% of amount = 500 divided by 100 or (500/100)
3)15% of amount = 500 divided by 100 times 15 =75 or (500/100X15=75)
So the answer to what is 15% of 500 = 75
Lets do it again. What is 30% of 600 ?
1)100% = 600
2)1% = 600 / 100
3)30% = 600 / 100 X 30 = 180
So the answer to what is 30% of 600 = 180
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If the question is reversed. How many percent is 75 of 500?
- 500 = 100%
- 1 = 100 / 500
- 75 = 100 / 500 x 75 = 15
answer 75 = 15 % of 500
Again How many percent is 180 of 600 ?
- 600 = 100%
- 1 = 100 / 600
- 180 = 100 / 600 x 180 = 30
answer 180 = 30 % of 600
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Comments
barryrutherford!
A million years ago my Dad told me "DON'T LET THE NUMBERS INTIMIDATE YOU". They are only squiggles... He is also who showed me the 3 step way. Once I grasped the concept it stuck, it is still the way I figure out percentages...One of my daughters was struggling with it too...She had to picture everything in a pie solution. It works for her, she hasn't had a problem with it since... i.e. 1/2 pie is 50% 1/4 pie 25% etc. (as far as I'm concerned I always felt sorry for the poor guy who only got 1% of that pie [not worth you're while is it] or can you imagine having to cut the pie into a hundred)
Good Luck with your calculations
regards Zsuzsy
Looks good. I've always been decent at math... It's statistics that's kicking my butt..
Statistics...I remember those...median etc...
thanks for taking a look
regards Zsuzsy
The guy at the top. It was "painfull" doing math I see. Apparently it was also PAINFUL with grammar.
Thanks for taking a look
regards Zsuzsy
Someone. There was need for that comment. You are on this site too ;)
or . "No" need for that comment. Guess he is not the only one with grammar problems.
Argh! I still can't get my head around percentage. Yet I could cope with algebra. I hope my boys pick up math better than I did. They couldn't be much worse!
tjmum! I had a Dad who was beside me pounding most of it into my head from times tables to everything else (Boy I used to hate that) but it paid of in the end. I loved trig and geometry, hated algebra but smoked through College calculus with top marks. The funny thing is that the stuff Dad showed me is all still there...go figure. Thanks for coming by
regards Zsuzsy
wonderfull stuff there
Hassam! Thanks for your comment. regards Zsuzsy
Thats a useful little hub, sure a lot of people will find that helpful!
Thanks for checking out the hub Gadzooks. I found over time every one has a different way of grasping math. So even if I was able to help only one person or kid it was well worth the short time it took to write the hub.
regards Zsuzsy
I printed this out and hung it on the fridge. Very easy guide! Thanks!
Glad to be of help Veronica. Thanks for visiting.
regards Zsuzsy
how do you work out 15%
The samples show you how...just check it out.
regards Zsuzsy
This is a very helpful article for anyone who is still in school or even studying for a teaching exam because believe it or not some people forget percentages. Thanks for the informative hub.
Thanks for taking a look and the comment SweetiePie.
regards Zsuzsy
Hey just wana say thank you for the help Im training for the police college and this is what I suck at PERCENTAGES thanks again well gotta get back to learning them!!
Glad to be of help Junior. Thanks for visiting. Good luck with your studies.
regards Zsuzsy
Wow Zsuzsy,
This hub is great because so much of this we learned in school but fail to remember when we do not put it to use on a regular basis. I know that percentages is one thing I had to relearn when I landscaped all the time, and ratios. Great job here!
C.S. Thanks for checking out the hub. My nephew had some trouble with percents until I showed him this 'old fashioned' method. My Dad was a smart 'teacher' who would pound things into my head until they stuck.
regards Zsuzsy
Good hub...will add this to my resources for my students.
Math tutor, thanks for taking a look and for commenting.
regards Zsuzsy
This hub proved to be a nice brush-up for some long semi-lost skills. Thanks!
Thanks Double Down for coming by and having a look and for commenting.
regards Zsuzsy
how would you work out 47% of 369? like withthe working out and that no calculators?
Lindsey, You need to know 47 % of 369
You know that 100% = 369
1% = 369 divided by 100
47% = 369:100 X 47
= 173.43
Hope this helps...
regards Zsuzsy
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barryrutherford says:
2 years ago
You make it look simple and it is but my brain still hesitates on maths something that goes back to my childhood when failure at maths was painfull.