math is (current month)/(prior month) - 1

If current month iis in C2 and prior in B2, then in the cell where you want
the % change, type:

=C2/B2-1


"Lazia" wrote:

Hi All, Please help me by creating a simple formula to findout the percentage
differences of "current month" - "last month" automatically whenever the data
is updated.
Grade Year Jan Feb Mar Apr May
1 2005 2555 3488 2213 3239

Thanks,
Lazia