McDonald's turnaround strategy is in overdrive

McDonald's has been making huge changes to its menu over the past several months. The fast-food chain has added some new items — like the premium sirloin burger — while altering others, like the Quarter Pounder, and announced that it will soon offer breakfast all day, among other changes. McDonald's is hoping that the tweaks help to revive business following seven straight quarters of same-store sales declines in the US, where McDonald's is battling a pervasive public perception that its foo...