## Basic College Mathematics (9th Edition)

$percent=\frac{part}{whole}\times100$ $percent=\frac{273}{5460}\times100 = \frac{1}{20}\times5460 = 5$ We must then find 5% of 360 because a full circle is 360 degrees, so $\frac{5}{100}\times360 = 0.05\times360 = 18$