I have created a data sheet with date/time of entry comparing date/time of notification occurring. This can sometimes be a negative time value (notification occurs prior to arrival - which is the desired outcome for the team). I have converted the negative time value using the =if(b2-a2<0,"-"&text(abs(b2-a2),"H:MM"),b2-a2) in my data table. I want this negative time value to appear on the pivot table and pivot graph. Please help.
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