Download the template HERE
Notes from Marshall: To use it, I would suggest filling out 2012 & 2013 invoices and total impressions in each of the fields on the spreadsheet. The form has formulas inserted already, so it will auto populate and give you numbers you can use. At the top in light orange I inserted some fake numbers just so others can see how it might look. For $ amount totals I just use the entire invoice amount, taxes, fees and all – as that’s what you are paying.
The importance of using a spreadsheet like this is that it’s a tool to help you gauge whether your efforts are improving. If anything is confusing just let me know.