The value of the item's UPC sold & how much the average Shipment is going in the same direction, including the reduced rate & Oil is changed, the delivery rate (By District) result in a decrease in freight.
The UPC is the value of goods sold & Shipment average amount in the same direction as the Oil rate decreased & Shipping rate changes (By District), resulting in lower shipping costs.
In the part of UPC that the value of the goods sold. & were Shipment average is in the same direction, including Oil rate decreased &, has changed the transportation cost. (By District) resulting in transport decreased.