Bon-Ton Stores said it will shutter at least 40 underperforming stores, out of the 260 stores making up its footprint, through 2018. "They are generally the negative cash flow stores that we've talked about, as well as more of our smaller [stores]," Chief Financial Officer Nancy Walsh told analysts. The announcement came as the department store retailer also reported third quarter same-store sales fell 6.6%, largely due to unseasonably warm weather that hurt sales of cold-weather apparel. Sales in the winter apparel category fell by more than one-third, or some 240 basis points, according to Nancy Walsh.