I don’t want to dispute your figures without references to hand but I’m certain that US forces dropped a greater tonnage of bombs in Europe (or maybe just on Germany?) than did Bomber Command.

For what it is worth wiki gives BC 964,644 tons v 8th 623,418 tons

https://en.wikipedia.org/wiki/Strategic_bombing_during_World_War_II#Allied_bombing_statistics_1939.E2.80.9345

Moggy