Unfortunately for some shareholders, the Hangzhou Century Co., Ltd (SZSE:300078) share price has dived 29% in the last thirty days, prolonging recent pain. For any long-term shareholders, the last month ends a year to forget by locking in a 53% share price decline.

Following the heavy fall in price, Hangzhou Century's price-to-sales (or "P/S") ratio of 2.1x might make it look like a buy right now compared to the Electronic industry in China, where around half of the companies have P/S ratios above 3.6x and even P/S above 7x are quite common. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's limited.

How Hangzhou Century Has Been Performing

It looks like revenue growth has deserted Hangzhou Century recently, which is not something to boast about. It might be that many expect the uninspiring revenue performance to worsen, which has repressed the P/S. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

What Are Revenue Growth Metrics Telling Us About The Low P/S?

Hangzhou Century's P/S ratio would be typical for a company that's only expected to deliver limited growth, and importantly, perform worse than the industry.

Taking a look back first, we see that there was hardly any revenue growth to speak of for the company over the past year. This isn't what shareholders were looking for as it means they've been left with a 33% decline in revenue over the last three years in total. So unfortunately, we have to acknowledge that the company has not done a great job of growing revenue over that time.

In contrast to the company, the rest of the industry is expected to grow by 26% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this in mind, we understand why Hangzhou Century's P/S is lower than most of its industry peers. Nonetheless, there's no guarantee the P/S has reached a floor yet with revenue going in reverse. Even just maintaining these prices could be difficult to achieve as recent revenue trends are already weighing down the shares.

The Final Word

Hangzhou Century's P/S has taken a dip along with its share price. Using the price-to-sales ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

Our examination of Hangzhou Century confirms that the company's shrinking revenue over the past medium-term is a key factor in its low price-to-sales ratio, given the industry is projected to grow. Right now shareholders are accepting the low P/S as they concede future revenue probably won't provide any pleasant surprises either. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

And what about other risks? Every company has them, and we've spotted 3 warning signs for Hangzhou Century (of which 2 can't be ignored!) you should know about.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com