How do you figure what percent 18 is of 72?

Answer 1

For any X% = X/100. First, it may help to rearrange the sentence to be more like an equation:

You could word it like this: 18 is what percent of 72. [18 = (what percent) times 72]

Now we have: so 18 = (X/100)*72. Solving for X = 100*18/72 = 25, so it is 25%