Percentage
= Percentage
{title2=$x\%=x/100$}
{wiki}
A <percentage> expresses a <ratio> in hundredths: $p$ as a fraction is $100p\%$. For example, $18/60=0.3=30\%$. Comparing two <percentages> requires specifying whether the change is an absolute difference in <percentage points> or a relative change divided by the initial value.