I want to know the answer to the following question:
Who made rough calculations and implied that Ashkenazi Jews make up less than 74% of the Jewish population worldwide?
All the background I'm provided with is that "Sergio DellaPergola in a rough calculation of Sephardic and Mizrahi Jews, implies that Ashkenazi make up less than 74% of Jews worldwide.". Is that enough to answer the question?
Answer: yes