The phrase "making up a total of" is correct and usable in written English.
You would typically use it when referring to a collection or grouping of parts that collectively form a whole. For example, "John has four siblings, making up a total of five children in his family."
Officially, Funai recognises the existence of 14 uncontacted tribes in the Vale do Javari, making up a total of at least 2,000 people.
At a glance, I can see that I've been to 671 places across 77 categories, making up a total of 1,277 check-ins.
In addition, 7∼10 plants of Japonica rice cultivars (pure lines) coexisting in the same fields were also sampled from each of the 11 sites, making up a total of 106 rice plants from the sampled sites.
The number of logs used in this study, i.e. logs not disturbed by treatments or sampling, varied from 68 to 111 among the nine localities with both spruce and birch (42 useful logs in the "spruce locality"), making up a total of 921 undisturbed logs.
Each treatment was replicated six times making up a total of 96 mesocosms (four earthworms × two subsurface microsites × two AMF treatments × six replicates).
The two pig radiation hybrid panels [ 12, 13], making up a total of 180 hybrid clones (90 clones in each panel), were genotyped using the Illumina porcineSNP60 array.
Of this salt content, carbon as bicarbonate constitutes 58 parts, or 48 percent, and calcium, sulfur as sulfate, and silicon as dissolved monomeric silicic acid make up a total of about 39 parts, or 33 percent.
They made up a total of 254 respondents.
20, 30, 40, 50, and 60 images are alternatively selected from the images taken by each of the 25 cameras in (mathcal {D}_{1}) to make up a total of 1000 images.
Because of our limited programming skills, we chose to only work with those three variables, which make up a total of 70 different combinations, each with its own corresponding painting".
As a result, another three schools were randomly selected and invited, which made up a total of 24 schools.
