Financial Measure of the Performance ROA can be written as the product of two ratios- profit margin and asset turnover-as shown below: ROA Earnings before interest (Profit margin) Sales revenue (Asset turnover) Sales revenue Total assets firm can increase ROA by growing the profit margin and/or increasing the asset turnover. SEIEE AU406 7+ - SEIEE AU406  ROA can be written as the product of two ratios— profit margin and asset turnover—as shown below: 7 Financial Measure of the Performance  firm can increase ROA by growing the profit margin and/or increasing the asset turnover