Dunkin' Brands Group Inc.'s second-quarter profits surged as the restaurant chain's mostly higher same-store sales and lower costs boosted results, MarketWatch reported. The Massachusetts-based parent of Dunkin' Donuts and Baskin-Robbins has been focused on expanding the doughnut-and-coffee brand westward in the U.S., improving its performance abroad and staging a turnaround of its ice cream shops domestically. Dunkin' Donuts has awarded franchises to two ownership groups in Iowa and announced plans in January to open stores in California by 2015. The company reported a profit of $40.8 million, or 38 cents a share, up from $18.5 million, or 15 cents a share, a year earlier. Revenues were up 5.9 percent to $182.5 million.