Q$3$: In $2019,$ Woolworths Group had a return on equity of $25\mathrm{.}6\%,$ whereas its supermarket industry competitor Coles Group Ltd earned $43\mathrm{.}4\%.$ use the decomposed ROE framework to provide possible reasons for this difference based on the following Figure.

$\backslash$table$[[,$Woolworths,Coles$],[,2019,2018,2019,2018],[$Return on sales,$4\mathrm{.}6\%,3\mathrm{.}1\%,3\mathrm{.}7\%,4\mathrm{.}0],[,,,,],[$Asset turnover,$2\mathrm{.}56,2\mathrm{.}45,3\mathrm{.}45,{3\mathrm{.}12}^{**}$