EPS and optimal debt ratio. Williams Glassware has estimated, at various debt ratios, the expected earnings per share and the standard deviation of the earnings per share as shown in the following table. $($Click on the icon located on the top$-$right corner of the data table below in order to copy its contents into a spreadsheet.$)$

$\backslash$table$[[$Debt ratio,Earnings per share $($EPS$),$Standard deviation of EPS$],[0\%,$$$2\mathrm{.}26,$$$1\mathrm{.}15$