Question

how to compute percentages

Answer 1

do you have an example problem ?

Answer 2

there is a percent formula : is/of = %/100

Answer 3

lets say you have a problem such as : 30% of what is 100 ?
percent formula : is/of = %/100
is = 100
of = x
% = 30
now we sub into the formula and make a proportion
100/x = 30/100
like with any proportion, you cross multiply and solve for x
30x = 10000
x = 10000/30
x = 333.333
so 30% of 333.333 is 100

that is just one example...it can also work for problems such as : what is 20% of 100
just be sure and follow the formula and put the numbers in the right spot.

Answer 4

or do you mean problems such as : turn 4/5 into a percent ??

Answer 5

if that is the case, what I do is first divide and turn it into a decimal
4/5 = 0.8....then you can either move the decimal 2 spaces to the right, giving us 80%, or you can multiply by 100 --- 0.8 * 100 = 80%

Answer 6

thank a lot makes sense now

Answer 7

I havent done math in quite awhile and planning on going back for general studies concentration in computer science