Compute for $2019$ and $2018$ the profit margin, asset turnover, return on assets, and return on common stockholders' equity. How would you evaluate Apple's profitability? Total assets at September $30,2017,$ were $$375,319$ million and total stockholders' equity at September $30,2017,$ was $$134,047$ million. $($Round Asset turnover to $2$ decimal places, e$.$g$.15\mathrm{.}25$ and all other answers to $1$ decimal place, e$.$g $15\mathrm{.}2\%.)$

$\backslash$table$[[,2019,,2018],[$Profit Margin,,$\%,],[$Asset Turnover,,times,$],[$Return on Assets,,$\%,],[$Return on Common Stockholders' Equity,,$\%,]]$