I need help with % and value

i dont know how to use % at all because i didnt reached it in my math class yet
so can anybody help?
i trying to make % of main value
like example
ivegot 40% and the 100% value are 450
how can i get 40% of 450?
to it be 0 if its 0%

Simple.

To convert a Percentage into a Decimal simply divide by 100

40% = 0.4

To get a percentage of a number simply multiply it by the number

450 * 0.4 = 180

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you mean i should split with 100 and then increase in the splitted percentage and i get the value right?

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Here’s a simpler way to think about it. Take the percent (in this case it’s 40%) and turn it into a fraction where the denominator is 100.
For example:
40% = 40/100
20% = 20/100
10% = 10/100
76% = 76/100

Then, convert the fraction to a decimal (tip: move the decimal to the left twice):
40/100 = 0.4
20/100 = 0.2
10/100 = 0.1
76/100 = 0.76

Then, multiply the decimal you got by the number you want to find the percentage of. In your case, you would do:

0.4 * 450 = 180

OR you can still use the fraction:

(40/100) * 450 = 180

it actually worked thank you i will note that for future :wink:

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@koziahss
was first who answered and she’s solution worked sorry