Don, a function can not change the font color but you can use conditional
formatting to change that cell, select the "value cell" and click on format,
conditional formatting, change cell valve is to formula is and put in
=$A$1$B$1, click on format, font, color, pick red, OK, OK now when A1B1
your "value cell" will change to red font.

--
Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Don" wrote in message
...
Paul,

Yes, I understand and know about the calculation......but, what I don't
know
is if the A1 B1, how can I tie changing the value color (not the cell
background) to a different color, in this case red, within the SAME cell
function? And, what is that function?

Thanks,
Don
"Paul B" wrote in message
...
Don, in two steps, for the color change, format conditional formatting,
formula is =$A$1$B$1, pick the format you want, for the calculation
part
=IF(A1B1,A1-B1,B1-A1)

--
Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Don" wrote in message
...
In sheet1, A1 value = 10, B1 value = 5 (both vary, sum of numbers on
another
sheet)

I would like to have another cell (we'll call it Difference) that
determines
which is greater (A1 or B1) and if A1 is greater, then color this
result
in
red and calculate A1-B1. However, if B1 is greater, keep the default
color
and calculate B1-A1.

Is this possible with function(s)?

Don