Customer Sales Comparison

[ugzruben]

I apologize if this is a similar post

I have exported from from my Accounting Program into Excel a list of customers and their sales from Sept. 2009 into one worksheet and customers and their sales from Sept. 2010 into another.

I have included the spreadsheet for your review.

Can anyone help me with either a macro or formula or function that can take information from both sheets and in the third worksheet create a comparison in the following format (columns)?

Customer Name | Last Year Sales | This Year Sales | Difference | Percent Change

The trick is..... the customer list may be different from one period to the other, but they need to be included if they had activity or not in either year.

Thank you in advance, I have been racking my brain for weeks around this issue. Sure I can do it manually but it would take me at least 30min to an hour to sort and organize it.

Gracias!!!!