valuation basis in payroll

Hi

i have to valuate my salary wage type on hourly basis. for weekly salary , as i have not worked on weekly salary . i am not understanding how to calculate and process in to payroll.

please let me know how i will set the processing class.

i am not understanding relation between processing class 1 and 10 with valuation  of time wage type in payroll node,

thanks in advance

mili