The following table shows the distribution of women staff across Professional and Managerial grades in a 'Five Star' Corporation.

Note:- (a) There are five times as many men in Professional Grades as women.
(b) The Corporation employs a total of 1300 staff in both Professional and Managerial Grades
(c) 8% of the total workforce at the Corporation is employed in Professional and Managerial Grades.
Based on the above, answer the question that follows:
In total, how many staff members (both men and women) are employed in Professional Grades in the Corporation?