The following information was available for the year ended December $31,2022$:

$|$ Sales $|$ $$400,000||$

$|$ Net income $|$ $$57,800||$

$|$ Average total assets $|$ $$700,000||$

$|$ Average total stockholders' equity $|$ $$340,000||$

Required:

a$.$ Calculate margin, turnover, and ROl for the year ended December $31,2022.$

b$.$ Calculate ROE for the year ended December $31,2022.$

Note: Round your intermediate calculations to $2$ decimal places. Round your percentage answers to $20\mathrm{.}1234$ should be entered as $12\mathrm{.}34).$ Round "Turnover" to $2$ decimal place.