Dollar General (DG) stock has plummeted by over 25% in pre-market trading after the discount retailer missed its profit and revenue estimates for the second quarter. The chain also cut its full-year outlook, with CEO Todd Vasos citing "financially constrained" consumers as a major factor for the store's overall softening sales figures.

Brad Smith and Alexandra Canal break down the story.

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This post was written by Luke Carberry Mogan.