As quoted on FedEx's press release:
"As we announced on September 4, weakness in the global economy constrained revenue growth at FedEx Express during our first quarter and affected our earnings," said Frederick W. Smith, FedEx Corp. chairman, president and chief executive officer. "Meanwhile, our FedEx Ground and FedEx Freight segments performed well, with both improving their year-over-year operating margins. We are taking further actions to reduce costs and adjust our networks to match current and anticipated shipment volumes."
Further details of the increase in rates can be found by clicking the following link: