The Wayback Machine - https://web.archive.org/web/20250629181913/https://extremismterms.adl.org/resources/hate-symbol/9
Hate Symbol

9%

9% is a numeric white supremacist symbol that refers to the percentage of the world's population that is purportedly white. When rendered graphically, the 9% figure often appears within a diamond of some sort.  The design is probably borrowed from the 1% symbol used by outlaw biker gangs.

Additional Images

9%
9%
9%