How many Jews were killed from each country during World War 2?
The conservative estimate of 5,933,900 lives lost to the final solution is well listed in the Holocaust section of the Jewish Virtual Library. Estonia, Latvia, Lithuania and Poland lost 90 percent of their Jewish population or about 3,228,000 people. --- The link provides a country-by-country breakdown.
During the Holocaust 6.85 Million Jews were killed during World War 2. Global Population of Jews by 1933 was Around 16 Million. So 6.85 Million/16 Million = 42.8%. It has been agreed that between 40% and 45% of the Global Jewish Population were killed during World War 2. So 4.2 in every 10 Jews were killed during World War 2 and the Holocaust.