Answer is 11/25 games lost which is 44%.
Step by step. 25 games minus 14 they won equals 11 games lost out of 25.
11 out of 25 = 11/25.
11/25 as a % - 11 divided by 25 = .44 which is 44%.
Check your work, 44% of 25 games = 11 games lost.
Problem solved.