Earlier in my wide and varied career, I had worked in high ticket sales (real estate and cars) where the 'industry standard' closing ratio was expected to be 1 in 4. Over the course of a week that was usually about right.
In contrast to this, I find that now, in fencing, I am converting 1 in 2 which is both pleasing and good. This probably accentuates the fact that there is a lot to do with how we frame our advertising and where we 'capture' our enquiries from. Certainly with cars and real estate there are many who simply go out on the weekend, either for just a look or to get ideas for their own home.
Similarly, I have people wanting to 'test the water', maybe compare what my price would be like compared to another or even, dread the thought, DIY.
I think if we really analyse our product and ask, 'Who wants this,' we learn how to more effectively increase our conversions. Very basis, I know - but it's the basics which are most often the winners.
Cheers, Nigel