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clothing price
When there's a sale in store's how do you caculate how many percent off are in clothes? for example, $30 top and it's 25% off?
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make 25% into a decimal so ..
$30 x .25 = $7.50
then you subract that from your original amount of money
$30 - $7.50 = $22.50
it's really easy once you get the hang of it! :]
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its pretty easy to do in your head once you get a hang of it
30 x .25 is how you would do it
or break 30 into 4 pieces. 7.5 x 4= 30
and 1/4 off is 25% so you are getting $7.5 off $30
it takes practice to get it just right. if you have it use a caculator on a cell phone
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Theres this method I use, because i hate doing long math in my head. Like .25 times 30.
So here is a trick which gives you a rough estimate and is great for someone who is not so good a math.
So the top you want is $30 and it's 25 percent off, move the decimal point one space so on $30. the decimal is at the end behind 0 (however on something like 2.99 the decimal is before the first nine). So that gives you 3.0 or $3 which is 10% of the price. then just double it to $6.0 to get 20%.
Just subtract that from 30 and it gives you 24 which is pretty much what the percent off is. I know reading all this makes it look hard but really, it's not! Say something is 50% off 40. Just move the decimal one place to the left and multiply by the first digit. So that would be 20, which gives you $20 as the final sale.
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all you do is take the percent off and turn it into a decimal. 25 would be .25, and then you multiply it by the price. Then you subtract the answer you get from 30... so you get this:
30(.25) = 7.5
30 - 7.5 = 22.5
And the new price would be 22.50 :) Hope I helped
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30 times .25. this would equal 7.50. so it would be 7.50 off $30. all you need to do is multiply the orignal price by .(whatever the percent) =]
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