How to Calculate a percentage of a number?

How do you calculate 18% off 450?How to Calculate a percentage of a number?
Easy! Multiply 0.18 by 450, and you have the discount!



0.18 * 450 = 81



I hope this helps!
This the same as asking what is 18 hundredths of 450

so we get

450 x 18/100 = 81

Then you take the answer from 450

gives 450 - 81 = 369

I am presuming by 'off' that you want to take 18% away from 450 but in case you meant of I have shown a complete answer

But you can also get this directly by taking 18% from 100% first
gives 82%
then getting 82 hundredths of 450

giving

450 x 82/100

= 369How to Calculate a percentage of a number?
Its really easy.

First, you have the fraction 18/100 (the 18%) and the fraction ?/450 (the ? is what your trying to find out)

Second, you cross multiply 18 by 450 (which is 8,100)

Third, you divide 8,100 by 100 (the other part of the fraction) which is 81.

And theres your answer! I hope that helped.
Hi Bonnie (:

You first need to convert 18% into a decimal making it be .18. Then you multiply that decimal by 450 in order to see how much it will take off of the total number.



.18 x 450= 81



Now you need to subtract that number in order to get your final total



450-81=369How to Calculate a percentage of a number?
Divide the number by 100 and times by the required percentage:



450/100 * 18



= 4.5 * 18

= 81



Easy to remember as %, per-cent, means parts per hundred.
When you see "of," think "times."
amount taken off = 18% of 45 = 18% × 45

When you see "percent," think "divided by 100."
18% × 45 = (18/100) ×45 = 8.1

amount remaining = 450 - 8.1 = 441.9
18% off 450 you would do:



450*.18= 81



then you would subtract the percentage from 450

450-81= 369
They gave you the answer, I will give you a small explanation: 18%= (18/100) when you multiply this with 450, you are getting the fraction you need ^.^
Convert percentage to decimal



0.18 * 450 = 81
.18 X 450

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