Answer
Percent of Total is 20%.
Degrees of Circle is $72^\circ$.
Work Step by Step
Use ratios and cross multiplication to find the percent of total amount.
$\frac{3584}{17920}=\frac{x}{100}\longrightarrow$ Cross multiply.
$17920x=(3584)(100)\longrightarrow$ Divide both sides by 17920 to solve for x.
$17920x\div17920=358400\div17920\longrightarrow$ Solve.
$x=20$
A complete circle is $360^\circ%. Find 20% of 360 using the formula
Part=Percent*Whole
$p=0.20\times360=72$