One of the best investments we can make is in our own knowledge and skill set. With that in mind, this article will work through how we can use Return On Equity (ROE) to better understand a business. We'll use ROE to examine Shanghai Lujiazui Finance & Trade Zone Development Co.,Ltd. (SHSE:600663), by way of a worked example.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors' money. Simply put, it is used to assess the profitability of a company in relation to its equity capital.

Check out our latest analysis for Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd

How Do You Calculate Return On Equity?

Return on equity can be calculated by using the formula:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd is:

3.9% = CN¥1.5b ÷ CN¥38b (Based on the trailing twelve months to December 2022).

The 'return' is the income the business earned over the last year. So, this means that for every CN¥1 of its shareholder's investments, the company generates a profit of CN¥0.04.

Does Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd Have A Good Return On Equity?

By comparing a company's ROE with its industry average, we can get a quick measure of how good it is. The limitation of this approach is that some companies are quite different from others, even within the same industry classification. You can see in the graphic below that Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd has an ROE that is fairly close to the average for the Real Estate industry (4.2%).

So while the ROE is not exceptional, at least its acceptable. Although the ROE is similar to the industry, we should still perform further checks to see if the company's ROE is being boosted by high debt levels. If a company takes on too much debt, it is at higher risk of defaulting on interest payments. You can see the 3 risks we have identified for Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd by visiting our risks dashboard for free on our platform here.

How Does Debt Impact Return On Equity?

Virtually all companies need money to invest in the business, to grow profits. That cash can come from retained earnings, issuing new shares (equity), or debt. In the first and second cases, the ROE will reflect this use of cash for investment in the business. In the latter case, the use of debt will improve the returns, but will not change the equity. Thus the use of debt can improve ROE, albeit along with extra risk in the case of stormy weather, metaphorically speaking.

Combining Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd's Debt And Its 3.9% Return On Equity

It's worth noting the high use of debt by Shanghai Lujiazui Finance & Trade Zone DevelopmentLtd, leading to its debt to equity ratio of 1.56. Its ROE is quite low, even with the use of significant debt; that's not a good result, in our opinion. Debt increases risk and reduces options for the company in the future, so you generally want to see some good returns from using it.

Conclusion

Return on equity is a useful indicator of the ability of a business to generate profits and return them to shareholders. In our books, the highest quality companies have high return on equity, despite low debt. If two companies have the same ROE, then I would generally prefer the one with less debt.

Having said that, while ROE is a useful indicator of business quality, you'll have to look at a whole range of factors to determine the right price to buy a stock. It is important to consider other factors, such as future profit growth -- and how much investment is required going forward. So you might want to check this FREE visualization of analyst forecasts for the company.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.