I gave you a real answer. What more do you want? A real number? Then take what you make as a consultant in a month's time, multiply it by 12 and add 15%. This will give you a real number.
I don't know what more to tell you...
And I think your response to my original thoughtful response was very rude.
Anyway, you will also need to take into consideration:
1. Year's experience
3. Market value
Most people don't get hired into a company witht he title "Excel programmer". It's usually a data analyst, or a financial analyst position where these skills come into play. Do you have knowledge of these disciplines?