Unfortunately for some shareholders, the TuanChe Limited (NASDAQ:TC) share price has dived 43% 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 81% share price decline.

Following the heavy fall in price, TuanChe may be sending buy signals at present with its price-to-sales (or "P/S") ratio of 0.1x, considering almost half of all companies in the Media industry in the United States have P/S ratios greater than 0.9x and even P/S higher than 4x aren't out of the ordinary. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/S.

How Has TuanChe Performed Recently?

For example, consider that TuanChe's financial performance has been poor lately as its revenue has been in decline. One possibility is that the P/S is low because investors think the company won't do enough to avoid underperforming the broader industry in the near future. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

Is There Any Revenue Growth Forecasted For TuanChe?

In order to justify its P/S ratio, TuanChe would need to produce sluggish growth that's trailing the industry.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 45%. This means it has also seen a slide in revenue over the longer-term as revenue is down 79% in total over the last three years. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

In contrast to the company, the rest of the industry is expected to grow by 3.9% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's understandable that TuanChe's P/S would sit below the majority of other companies. However, we think shrinking revenues are unlikely to lead to a stable P/S over the longer term, which could set up shareholders for future disappointment. There's potential for the P/S to fall to even lower levels if the company doesn't improve its top-line growth.

What Does TuanChe's P/S Mean For Investors?

The southerly movements of TuanChe's shares means its P/S is now sitting at a pretty low level. 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 TuanChe 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. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. Given the current circumstances, it seems unlikely that the share price will experience any significant movement in either direction in the near future if recent medium-term revenue trends persist.

And what about other risks? Every company has them, and we've spotted 4 warning signs for TuanChe (of which 1 is potentially serious!) 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.