You could use:
{IF{=A2 }>{=B2 } "( + )" "( - )"}
(All braces are field braces, not ordinary ones); or:
{=B2- A2 \# "'( - )';'( + )'"}

To see how to do a wide range of calculations in Word, check out my Microsoft Word Field Maths Tutorial, at:
http://windowssecrets.com/forums/sho...Maths-Tutorial
or:
http://www.gmayor.com/downloads.htm#Third_party

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]