Forum Moderators: not2easy
If you know Bill could really use your ebook, and he's the only one you approach about it, and you sell it... that's 100% conversion.
On the other hand, if you push it out into the mass advertising sector then you're in front of much less qualified leads and you can't even hope for 100% conversion.
Buy a mailing list or obtain a [permission based] email list and send out a test marketing piece to a sample of whichever or both lists and see what type of response rates you get and what type of conversion you get. If the response and conversion is high enough you roll it out to the entire list. If it is too low then adjust your copy or your list and test it again. Do this a few times and you will have a pretty good idea of what the best response and conversion rate will be.
In direct mail the common advice tossed around for years has been a response rate of 1-3% and this number became the "benchmark" which was really silly because some mailings produced 11-18% response and some even higher. It was simply getting the right combination of list, mail package, and offer in place to make it a success.
If I were doing this I would buy a direct mail list from a broker for the audience that your book would appeal to and send out a test mailing. Then I would research the web and find some e-Newsletters publishers that hit the same audience and contact the publisher and ask what kind of arrangement you could work out to either blast a direct response email to the list or include a direct response ad in one or more of the publications would be and then test it.
In direct marketing the old adage long before the Internet existed was test, test, and test. The formula did and still does work very well. This way you wouldn't have to guess or accept common "benchmarks" that may or may not have any true connection to your product.
FH
Maybe you should focus more on Profit (or Revenue) Per Conversion istead?
Yes. What does the conversion (cost of marketing, i.e. cost of connecting product to buyer) cost? Is there enough profit or conversion to be worthwhile?
What is the 'shelf life', i.e., can it sell slowly and steadily (but with minimal additional attention), or does need to fly out the door before becoming stale?