Atlanta-based carrier raises target for share buybacks to $3 billion this year UPS’s revenue per piece shipped grew nearly 12% year over year.PHOTO: SPENCER PLATT/GETTY IMAGES   UPS 3.53%▲United Parcel Service Inc. said higher fuel surcharges and shipping rates helped offset a larger-than-expected decline in packages shipped in the second quarter. Average daily shipping volume fell 4% in […]