what percentage of the population is left handed

According to multiple sources, left-handed people make up about 10% of the population worldwide. This estimate is based on the largest survey ever conducted in 1994, which was done in 32 countries and found that 9.5% of people worldwide reported using their left hand to write. However, some sources note that early estimates ranged from 1% to nearly 30% due to variations in preference and skill from task to task and because of left-handers being underrepresented in surveys.