Mathematics · Percentages and Ratios

The ratio between the number of students from college 'P' who successfully completed a 'French' course and the number of students who failed to complete the same course from college 'Q' is 9:8. The total number of students who successfully completed the 'French' course from both colleges together is 174. If the number of students from college 'P' who successfully completed the 'Spanish' course is 6 less than the number of students who completed the 'French' course from the same college, then the number of students who completed the 'Spanish' course from college 'P' is what percent more or less than the number of students from college 'Q' who successfully completed the 'French' course?