In the Canadian context it hasn't really happened, but I can say that the one we are doing on literacy and essential skills is approximately $5 million. We can double-check that, but it's been announced. In other countries it really varies.
To my last point about scaling up approaches, it really does depend on the scale you want to bring to something.
In the UK I think that most of the projects would probably have been in the realm of $5 million to $10 million approximately. It depends on the community; it depends on the nature of the intervention.
I think the important point, though, is that you can scale it. The cost is scalable, and it depends on the intervention, the number of people involved in the project, and the environment in which you're doing it. Is it a small community or is it a major urban centre? I think all those variables can be decided upon when you're designing it.