Thank you all for the reply,
What Iam trying to acomplish is the following:
I have a number, for example 1.255
then I have about 30 mesurements made
against that number, so What Iam trying
to do use a code that can tell me if the
mesurements are increasing or decending from
base value of 1.255
I will try Spoo's code and see how thats comes out.

Thanks