By the Numbers

93 percent ­— The average percentage of union-represented private sector employees who were full union members in forced unionization states. 

20 percent ­— The reduction in membership in the Michigan Education Association since the passage of right-to-work. Growing enrollment in charter schools and school privatization also probably contributed to this decline. 

84 percent — The percentage of union-represented private sector employees who were full union members in right-to-work states.