Don't know if the following can be performed. Have an Excel worksheet with over 30,000 rows and 25 columns - the first column is the
product code and the remaining 24 columns contain the cost per unit of the product over a 2 year period. Example, I have a year over year trend of 30% for the month ending May 2009 on an agregate basis (for all products). This would imply that when one ...