Thank you, guys!!
sorry, this has been my first post (on any forum) so i did not realize the issue with the image. As per SirJB7's suggestion, i will upload the file next time. Also in a rush to post my question, i may have made a mistake on the average's which is why the averages were...
I am a newbie to Excel and so need help.
Basically, we have a worksheet that has monthly data for the last few years. In our example, we have the 'final' sales data available up to December 2011 but the latest months in 2012 are 'guessed' (by the 'powers-that-be') which are entered to the...