I want to know I have two columns Order fufillment and Order request. These both contain date and time in this format (mm/dd/yyyy hh:mm:ss).
I want to know if I want to show average order processing time how can I do that and want to show in form of minutes: ss like ( 2.30 which is 2 minutes and 30 seconds) or hh:mm:ss. I want to show only for orders which have flag sign C.
