First, make fractions set equal to each other. We're going to solve for x.
Percents are portions of 100, so we'll set the unknown (x) percentage over 100.
x/100 = 24/96
Now, cross multiply.
100*24 = 96x.
To get x by itself, divide both sides by 96.
2400/96=96x/96
x=25%
To check, divide 24 into 96., which equals 0.25 or 25%.
This type of solving especially helps in problems where the unknown value (the x) is in a different spot.
For example, if the problem were,
"What is 25% of 96?"
Then you'd set up the same problem, but it'd look like this:
25/100 = x/96
And you'd come out with 24.