Thursday, February 2, 2012

How do you calculate a percentage?

My result was 74 out of 90, what was the percentage?How do you calculate a percentage?
74/90 = 0.822



0.822 * 100% = 82.2%
Hi:



to calculate percentage use the following :



part of something divided by the total of somthing times 100 equals the percentage or put in simply ;



p/t * 100 = x%



your problem



p = 74 , t = 90 so



74/90* 100 = x%



0.822222* 100 = x%



82.2222... = x%



82.22% = x



so 82.22% is the percentage



proof



82.22% of 74 = t



(p/t)* 100 = x%



(74/t) * 100= 82.22%



t * 74/t * 100= 82.22%* t



74 *100 = 82.22% t



74 *100 = 82. 22%t



1 / 82.22% * 74*100 = 1 /82.22 * 82.22%t



1/ 82.22* 74 * 100 = t



since 1 /x% * 100 cancel the % sign out ( the x is any number with a % behind)

So



74/82.22* 100 = t



7400/82.22 = t



90.0024324 = t



because I used the rounded it ( the percent) to two decimal place value for the percent {82.22}. Instead of the actual 82.222.... I got the above answer for it, but when rounding it to two decimal place it will equal 90

which is the same total for t which I stated out with



so this answer is the correct answer for it .



I hope this helps.How do you calculate a percentage?
Multiply the quotient by 100 and call it a percentage.



74/90 = 0.8222



Multiply it by 100 and you get 82.22

Call it a percentage and you get 82.22%



74/90 = 82.22%
you do 74/90. then multiply by 100 to get a percentage.

74/90=.8222

.8222 * 100

82.22%How do you calculate a percentage?
74/90 = x/100



x = 74x100 (7400) divided by 90 or 82.2222
about 82%

divide what you received by the total amount

74 divided by 90 = .82222222 = about 82%
Take 2 numbers, A and B



A * 100 / B = t



A is t% of B



That's it.

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