Subway has fallen behind on food industry trends — and it could be killing the chain.
The sandwich chain's US store count dropped by more than 900 in 2017, almost three times as many locations as closed the year before. National sales declined across the US in 2017, people with knowledge of the situation told Business Insider.
Multiple franchisees told Business Insider that they expect the number of closures to grow in 2018, with one franchisee saying that the company's store count could drop by the thousands. Another said that up to one-third of Subway locations in the US aren't profitable.
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