Friday

Salary in lieu of notice for alternate Saturady work week

Supposing an employee is on a 5 day work week, I understand that the formula to calculate the salary in-lieu of notice is as follows: (Monthly salary x 12) / (52 weeks x 5) How do I calculate the daily rate if the employee is on a 5 weekdays + half day alternate Saturday work schedule?
(Monthly salary x 12) / (52 weeks x 5.25)