During Big Week, the Eighth Air Force lost 97 B-17s, 40 B-24s and another 20 scrapped due to damage. The operational strength of the Eighth Air Force bomber units had dropped from 75 percent at the start of the week to 54 percent, and its fighter units strength had dropped from 72 percent of establishment strength to 65 percent. The Fifteenth Air Force lost 14.6 percent (90 bombers) of establishment strength, and RAF Bomber Command lost 131 bombers (5.7 percent) during Big Week. Although these numbers are high in absolute terms, the numbers of bombers involved in the missions were much higher than previously, and the losses represented a much smaller percentage of the attacking force. The earlier Schweinfurt missions had cost the force nearly 30 percent of their aircraft per mission.