How would you make money with $8 CPM?

Let's say a website charge $8 CPM for a banner ad. At minimum.

As an advertiser, how would you make money with that price?

With $8 CPM, my guess CPC is $1 and more. And we're talking about banner ad here, not search engine.

This kind of traffic is untargeted, people clicking by curiousity, sometimes people clicking by mistake .. if they click at all (isn't industry standard ctr is 0.5% or something?)

I'm just curious.

It depends on the price of the product being advertised on the banner ad. Very expensive products can bring back the advertising cost and even give a little profit. But $8 CPM??? Are there companies that pay for such? I'm surprised.

At that price, I would make sure that it is targeted traffic, and plus high commission product.

Accidental clicks at that price is quite risky.