Your regions of ancestral origins are statistical estimates, based on the company’s database. Your Ethnicity Estimates are updated by the ancestry company, as more people get tested. Ancestry has a database of approximately 15 million, MyHeritage 4 million. My first estimates, with Ancestry.com, showed that I was 95% European Jewish, next 99%.  The last update, shows that I’m 100% European Jewish. According to MyHeritage, I'm 94% Ashkenazi Jewish and 6% Sephardic Jewish.