As with every army, a given percentage of the troops are dedicated to the logistics and transport of supplies to support that army’s campaigns. The Wehrmacht of World War Two required a great deal of manpower, munitions and vehicles to support its war efforts. I am not aware of how many troops in the Wehrmacht were dedicated to transporting supplies as opposed to combat, are there any figures to indicate how many troops were key to the logistics and other non-combat functions of the German Army when they were fighting on the most fronts, with the most troops (in late 1944?)
More to the point, how does the German "tail to tooth" ratio compare to that of their battlefield opponents on the western front, like the Americans and British? How about the Soviets on the eastern front?