How do I forecast these sales?

[tonytony]

Hi,

I'm trying to forecast some sales.

I have no idea what I'm doing, but anyhow: I have an Excel spreadsheet listing the states I want to market to, the GDP per capita (PPP) of each state, how many men there are in my market, and how many women. I assume the conversion ratio is 2% for men and %5 for women.

Now that I got this - what basic mathematics / advanced economic models could I apply to try to forecast sales? And is there any other data that I could try get my hands on that could help me create an even more precise model?

Thanks!