At a particular university, 44% of the students are freshmen, 25% are sophomores, 16% are juniors, and 15% are seniors. Of the freshmen, 35% have not declared a major. Of the sophomores, 25% have not declared a major. Of the juniors, 10% have not declared a major, and of the seniors, 3% have not declared a major. Of the students who have not declared majors, what percent (rounded to the nearest percent) are freshmen