Dollar General raised its outlook for the year after reporting higher profit and sales in the quarter ended July 31. Quarterly profit reached $550.3 million, up from $411.4 million a year earlier, while earnings per share rose to $2.48 from $2.01 and topped the average estimate of analysts polled by FactSet. The retailer’s shares were up 0.16%, reflecting the results and revised outlook. The performance was supported by consumers’ continued reliance on Dollar General for low-cost goods.