"Front-line Finnish officers and men consider that on the basis of performance thus far a Finn is worth ten Russians and they estimate, probably with exaggeration, that casualties have been in the ratio of twenty Russians to one Finn...."
In fact, Soviet troop losses were about five for every one Finn killed.
In aircraft it was 10-to-one, and in tanks over 100 Soviet tanks for every Finnish tank destroyed.
That five-to-one against Finland compares to the Soviets' overall victorious war record against Germany of three-to-one.
On the Western Front in 1940 the ratio was approx. three French, Brits & other allies killed for every German.
The Western Front in 1944-45 saw roughly three Axis troops killed for every two of the allies.
The Germans lost about 10 soldiers killed on the Eastern Front for every one killed by the allies after D-Day in 1944.
The DePuy brothers put it at two Germans were worth three western soldiers in combat effectiveness, and one German was worth at least six Soviets.