Question c5c74

$28$ is 40% of $70$
Gives two number, $a$ and $b$, to calculate $a$ as a percentage of $b$, divide $a$ by $b$ $\left[\frac{a}{b}\right]$. To put this number into standard percentage form just multiply the result by $100$.
For your example use this $\frac{28}{70} \cdot 100$, which is equal to 40%#.