St. Louis — Panera Bread has opened the first of its new updated urban store format in New York, the newest of several new formats targeted at more densely populated and non-traditional trade areas. With digital sales at Panera now representing 50% of total system sales, Panera now offers a portfolio of store formats designed to cater to the needs of an increasingly digital and off-premise guest. “At Panera, our innovation has always been rooted in the guest and associate experience, how we can reduce friction, drive convenience and bring …