D.C.-area restaurant sales soar in January

Editor's note: The Washington Business Journal is partnering with restaurant management software firm MarginEdge to bring readers a monthly snapshot of restaurant sales around the D.C. region. MarginEdge helps restaurant manage purchasing and sales data. The 12-month sales trend comes from a sampling of 300-plus restaurants in the D.C. area. This month, they also pulled additional sales data from restaurants located in zip codes near the route of the Washington Nationals' victory parade to see how…