I've been keeping an eye on the analytics for one of my projects that is currently performing quite well. Since this is the first time a project has received so much attention, I'm still learning how to interpret the stats. Now I know that a great CTR is something around 2-3% or higher. However, the ideal percentage of views that convert to downloads is less clear. Right now, my project (which can be downloaded for free) is getting around 0.34 downloads per view.

This is probably highly variable and dependant on a lot of things but I'm interested to know what is considered 'ideal'. What values are you getting on your projects?

One of my older, but seemingly well-liked projects is sitting at around 2.27% CTR from 88 impressions in the last week. I think that sort of percentage is good, though they can range wildly. For instance, one of my newer games has 0.91% CTR from 11k impressions in the last week. Likely, most projects, even if they are stellar, will fit within the 0.9% to 3% interval because it will require some top-notch advertising to the right people (or just some really devoted fans) to get a high CTR in most cases.