Charting Aging Tickets Over Time

I figured it out! Days was not returning partial days, so I had to use hours and divide by 1440. 

Now the problem is the calculations are too hard for my computer's resources! Pardon the messy DAX. 

Average Ticket Age = AVERAGEX('Incidents',
    IF(
    	DATEDIFF('Incidents'[Submit Date],MAX(Dates[Date and Time]),MINUTE)<0, //Submit after reporting date is a neg #, so ticket is not open yet
    "",
        IF(
            ISBLANK('Incidents'[Last Resolved Date]),//if the resoved date is blank, then it is max date minus submit date
        DATEDIFF('Incidents'[Submit Date],MAX(Dates[Date and Time]),MINUTE)/1440,
            IF(
                'Incidents'[Last Resolved Date]>MAX(Dates[Date and Time]),
            DATEDIFF('Incidents'[Submit Date],MAX(Dates[Date and Time]),MINUTE)/1440,
                IF(
                    'Incidents'[Last Resolved Date]+1>MAX(Dates[Date and Time]),DATEDIFF('Incidents'[Submit Date],'Incidents'[Last Resolved Date],MINUTE)/1440,
                ""//If the resolved date is greater than the report date then the age is the report date minus submit date 
            
                )
            )
        )
    ))