Return on Assets (ROA) You already know the first component of ROA. It’s simply net margin, or net income divided by sales, and it tells us how much of each dollar of sales a company keeps as earnings after paying all the costs of doing business. The second component is asset turnover, or sales divided by assets, which tells us roughly how efficient a firm is at generating revenue from each dollar of assets. Multiply these two together, and you have return on assets, which is simply the amount of profits that a company is able to generate per dollar of assets.
