Salary Slip from Timesheet for variable Hourly Rate


Currently Hourly rate defined as fixed value in Salary Structure. I need Hourly rate to be defined as ( base salary ) / 30. How can we achieve this

I have same problem, I have 2 hour rate (normal rate and overtime rate). Can I still produce salary in 1 salary slip? Overtime rate is 1.2x normal rate. I use 2 Timesheet, and for overtime I adjust manually the hour rate to 1,2x normal rate. Is there any faster way without do it manually?