This site gives a lot of detailed info on WWII unit compositions. Commonwealth battalions (inf) were similar to the US set-up that you showed jmm99. With around 35/36 : 800 (bat. HQ had 5 off.)
USMC inf bat. were larger but ratios weren’t far different with around 38 : 900 (roughly averaged through the evolving series)
The Germans typically had around 30 % fewer officers but many platoons were commanded by NCOs and often the coy. com. was the senior pl. com.
Now to be fair, do current inf. bat. really look all that different. Maybe a few more off. at HQ but from there down it's pretty much identical.
So the 'excess' is to be found where Cavguy and Ken have identified them, above and to the peripherals of the combat units.
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