hi, i have a small problem..
in cell a1 and b1 i have some numbers, and i want in c1 to view the
diferences between a1 and b1 in percentage. but i want to have the percentage
to be negative or positive.
example 1
a1 b1 c1
25 142 18%

example 2
a1 b1 c1
142 25 -18%



i hope i make the example the right way, but i want the diferences in
percentage.


thank you!!