Required:

Firm D has net income of $56,595, sales of $1,155,000, and average total assets of $770,000. Calculate the firms margin, turnover, and ROI.

Firm E has net income of $107,136, sales of $1,674,000, and ROI of 7.68%. Calculate the firms turnover and average total assets.

Firm F has ROI of 12.80%, average total assets of $1,580,000, and turnover of 0.8. Calculate the firms sales, margin, and net income.