Shares of Dollar General Corp (NYSE:DG) are surging, last seen 13.6% higher at 110.39,ontrackfortheirlargestdailypopever,afterthediscountretailerbeatearningsandrevenueexpectationsandlifteditsfull−yearsalesoutlook.Forthefiscalfirstquarter,DollarGeneralpostedearningsof1.78 per share on revenue of 10.44billion,toppingestimatesof1.48 and $10.31 billion, respectively. The company noted its guidance assumes current tariff rates will remain in effect through mid-August.Fo ...