I have an online business, which I plan to promote by purchasing a one-time advertisement to 100,000 quite targetted subscribers (they are not all paying customers, the leads were generated in exchange for a free product, but they are all real people interested in my niche). I'm going to sell a monthly subscription product to them with the initial and monthly charge of $39.
My question is, what conversion ratio can I expect? I understand that it is highly individual, however, the reason why I am asking is that I have never done e-mail marketing before - I am not really looking for answers like "you should expect this and that conversion ratio", but what conversion do YOU get under similar circumstances?
Thank you very much!