For all completed requests, we use the Date/Time the Job Request was marked as Completed minus the Due Date/Time
Example:
Job Request A
Completed on 15/5 at 10:00am
Due on 15/5 at 9:00am
Efficiency is +1hr
Job Request B
Completed on 15/5 at 10:00am
Due on 14/5 at 9:00am
Efficiency is +25hr
What will be displayed is the TOTAL Efficiency and in this case: +26hrs