# Is Nanjing Sample Technology Company Limited’s (HKG:1708) 8.7% ROE Better Than Average?

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 Nanjing Sample Technology Company Limited (HKG:1708), by way of a worked example.

Nanjing Sample Technology has a ROE of 8.7%, based on the last twelve months. That means that for every HK\$1 worth of shareholders’ equity, it generated HK\$0.09 in profit.

View our latest analysis for Nanjing Sample Technology

### How Do I Calculate ROE?

The formula for ROE is:

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

Or for Nanjing Sample Technology:

8.7% = CN¥181m ÷ CN¥2.1b (Based on the trailing twelve months to June 2019.)

Most know that net profit is the total earnings after all expenses, but the concept of shareholders’ equity is a little more complicated. It is the capital paid in by shareholders, plus any retained earnings. The easiest way to calculate shareholders’ equity is to subtract the company’s total liabilities from the total assets.

### What Does ROE Signify?

ROE looks at the amount a company earns relative to the money it has kept within the business. The ‘return’ is the amount earned after tax over the last twelve months. The higher the ROE, the more profit the company is making. So, all else equal, investors should like a high ROE. Clearly, then, one can use ROE to compare different companies.

### Does Nanjing Sample Technology Have A Good ROE?

One simple way to determine if a company has a good return on equity is to compare it to the average for its industry. However, this method is only useful as a rough check, because companies do differ quite a bit within the same industry classification. If you look at the image below, you can see Nanjing Sample Technology has a similar ROE to the average in the Electronic industry classification (10%).

That isn’t amazing, but it is respectable. ROE tells us about the quality of the business, but it does not give us much of an idea if the share price is cheap. I will like Nanjing Sample Technology better if I see some big insider buys. While we wait, check out this free list of growing companies with considerable, recent, insider buying.

### Why You Should Consider Debt When Looking At ROE

Most companies need money — from somewhere — to grow their profits. The cash for investment can come from prior year profits (retained earnings), issuing new shares, or borrowing. 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. That will make the ROE look better than if no debt was used.

### Combining Nanjing Sample Technology’s Debt And Its 8.7% Return On Equity

Although Nanjing Sample Technology does use debt, its debt to equity ratio of 0.60 is still low. I’m not impressed with its ROE, but the debt levels are not too high, indicating the business has decent prospects. Conservative use of debt to boost returns is usually a good move for shareholders, though it does leave the company more exposed to interest rate rises.

### In Summary

Return on equity is one way we can compare the business quality of different companies. In my book the highest quality companies have high return on equity, despite low debt. All else being equal, a higher ROE is better.

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. Profit growth rates, versus the expectations reflected in the price of the stock, are a particularly important to consider. You can see how the company has grow in the past by looking at this FREE detailed graph of past earnings, revenue and cash flow.

If you would prefer check out another company — one with potentially superior financials — then do not miss thisfree list of interesting companies, that have HIGH return on equity and low debt.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned.

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