Consider that 590 represents 100%; then, we need to calculate:
[tex]\begin{gathered} 590\to100\text{percent} \\ 579\to x\text{ percent} \end{gathered}[/tex][tex]\begin{gathered} \Rightarrow \\ \frac{590}{100}=\frac{579}{x} \\ \Rightarrow x=\frac{579\cdot100}{590}=\frac{57900}{590} \end{gathered}[/tex]Then, the decrement in enrollment is:
[tex]y=x-100=-1.8644\ldots\approx-1.9[/tex]The answer is -1.9%
