What percentage of the population of Nagasaki was killed by the atomic bomb?

The atomic bombing of Nagasaki on August 9, 1945, resulted in an estimated 40,000 to 75,000 immediate deaths, with total casualties, including injuries and long-term effects, reaching around 80,000 to 100,000 people. At the time, Nagasaki had a population of approximately 240,000, which means that roughly 17% to 31% of the population was killed or severely affected by the bombing.