Potbelly (NASDAQ:PBPB) is hitting low after low. Adding insult to injury, the sandwich company had a 2.2% drop in comparable store sales during the first quarter -- and it's warning of another 1.6% decline in the second quarter. To put it simply, the fast-casual dining chain is struggling with increased competition in this space.

In this segment of The Motley Fool's Where the Money Is, consumer-goods editor Mark Reeth and analyst Sean O'Reilly discuss what this tough business environment means for Potbelly and its 300 stores around the U.S.

Mark Reeth has no position in any stocks mentioned. Sean O'Reilly has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.