Dollar Gen's Q1 earnings increased by 21.96% and the company posted a positive ROCE of 0.09%, which suggests effective capital allocation. This is a positive indicator for the company's future performance and could lead to higher returns and earnings per share growth. However, sales decreased by 8.43%, which may have a negative impact on the stock price. Overall, the positive earnings and ROCE outweigh the decrease in sales, resulting in a likely short-term positive impact on the stock price.