Walmart has its worst stock decline in more than 27 years after predicting a drop in annual profit. Earnings will decrease 6 percent to 12 percent in fiscal 2017, which ends in January of that year. Analysts had estimated a gain of 4 percent on average. Efforts to raise the minimum wage to a goal of $10/hr combined with an expanded training program, added about $1 billion in costs this year and $1.5 billion next year. Shares fell 10 percent to $60.03 in New York, the biggest drop since January 1988.