## Algebra and Trigonometry 10th Edition

$c(t)=\frac{b(t)-d(t)}{p(t)}\times100\%$
$c(t)=\frac{b(t)-d(t)}{p(t)}\times100\%$ The change in the population as a percentage value is equal to the birth rate minus the death rate, divided by the population and multiplied by 100%.