> As of 2020, the percentage of white employees at Facebook is 63.2%.
It links to this [1] document where if you click on "whites" in the "US ethnicity" section, there is indeed a 63.2% percentage. But that number corresponds to the green curve which concerns people in leadership roles. The number for all facebook employees (including the technical engineers, etc) is the blue one, which only has 41%. In the image, facebook would thus be closer to the other tech companies and further away from the journalists.
It's also interesting to note that the percentage of nonhispanic whites in the US population is 60.1% [2], so they are actually underrepresented in big tech companies (and overrepresented in tech journalism). Didn't know that!
[0]: https://tech-journalism-diversity-report.github.io/code/
[1]: https://diversity.fb.com/read-report/
[2]: https://www.census.gov/quickfacts/fact/table/US/PST045219