Shares of Macy's Inc (NYSE:M) are tanking out of the gate, last seen down 12.1% at $15.62 after a mixed second-quarter report. The department store operator showed quarterly earnings of 53 cents per share on revenue of $4.94 billion, the former beating estimates and the latter falling short, and cut its full-year sales forecast amid struggles to get shoppers in stores and more promotions.It's been a tough year on the charts for M, down 24% year to date as the company sets its sights on closing 150 -- roughl ...