The DuPont Identity is a financial tool that can be used to see how three main factors affect ROE:

**Profit Margin** - Net Profit/Sales

**Asset Turnover** - Sales/Assets

**Leverage Ratio** - Assets/Equity

Suppose XYZ Corp. has a profit margin of 20%, asset turnover of 300%, and a leverage ratio of 50%. What would their return on equity be?

We can see that this relatively simple calculation is:

The DuPont Identity allows us to see that ROE is a complex measure. A company with a low profit margin may have a strong ROE if it is not levered up very much. The equation can be rearranged to solve for missing values, as in the following example:

Suppose ABC Corp. has a 10% profit margin, an ROE of 30%, sales of $2000, and equity of $1000. What is the value of its assets?

By plugging in the values given, we can solve for assets = $500

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