Key TakeawaysBath & Body Works shares tumbled ahead of markets opening Tuesday despite a first-quarter earnings report that came in above expectations.Sales fell from last year, while profits rose slightly and came in above analyst estimates.The company also narrowed its full-year outlook, and issued second-quarter guidance. Shares of retailer Bath & Body Works (BBWI) slid in premarket trading Tuesday despite a first-quarter earnings report that surpassed analyst expectations and the company's own guidance. ...