# Finding a percentage of a quantity

Percent means 'out of one hundred', so $$15\%$$ means $$15$$ out of one hundred.

$15\% = \frac{{15}}{{100}} = 0.15$

### Example

Find $$30\% \,of\,\pounds800$$

$= \frac{{30}}{{100}} \times 800$

$= 0.3 \times 800$

$= \pounds240$