sum total vs assemblage

sum total and assemblage both are nouns.

Word	Noun	Adjective	Verb	Adverb
sum total	Yes	No	No	No
assemblage	Yes	No	No	No

As nouns, assemblage is a hypernym of sum total; that is, assemblage is a word with a broader meaning than sum total:

Other hypernyms of sum total include accumulation, aggregation, collection.

sum total (noun)	assemblage (noun)
the final aggregate	the social act of assembling
	a system of components assembled together for a particular purpose
	a group of persons together in one place
	several things grouped together or considered as a whole