Retrieve previous day DWS in PCR

Hi Guru,

Need help in retrieving previous day dws and use it in pcr. Requirement is I need to compare the previous day dws with the current day dws. I need to compare if previous day is a rest day so the current day will be the 1st day of the week. I would have a separate pcr that would reset a certain wage type that holds actual weekly working hours.

Thanks