Percentage Calulation in RS

Hey all,
I need to calculate % bases on 2 columns (Col1 and Col2), and my result that
I want is in Col3(%). Please see the layout below. Is that possible?
Col1 Col2 Col3(%)
--
A 5 50%
B 2 20%
C 3 30%
D 0 0%
Total 10 100%
Thanks in advance!
Calculate Percentage> Col1 Col2 Col3(%)
> --
> A 5 (textbox2) 50%
> B 2 (textbox2) 20%
> C 3 (textbox2) 30%
> D 0 (textbox2) 0%
> Total 10(textbox34) 100%
Assuming you have Tabular report Design,
Expression in Col3 can be -
= Reportitems!textbox2.value/Reportitems!textbox34.value
and Format field with %
(My formula syntax can be wrong, use textbox reading syntax)