Round to one decimal place from two datetime values

[wheels0323]

Need help rounding to one decimal place from two datetime fields.

So far I have.

SELECT PERSONNUM, 
ROUND(convert(decimal(10,1), datediff(minute, shiftstartdate, shiftenddate) / 65.0), 1) 
FROM VP_SCHEDULE
WHERE PERSONNUM = '016902'
AND SHIFTSTARTDATE = '2007-03-27 06:00:00.000'

That brings back a 7.8. The real value is 7.85.

So if I change the code to two decimal places, it brings back a 7.90.

SELECT PERSONNUM, 
ROUND(convert(decimal(10,2), datediff(minute, shiftstartdate, shiftenddate) / 65.0), 1) 
FROM VP_SCHEDULE
WHERE PERSONNUM = '016902'
AND SHIFTSTARTDATE = '2007-03-27 06:00:00.000'

How can I get it to come back with 7.9 only?
The shiftstarttime, and shiftendtime are datetime values.

 

[RiverGuy]

You don't need to alter the way SQL returns the data. You need to alter how it is displayed in your report. In the FORMAT for your textbox, you would have:

="###,###.0#