Got a $5 click one day. Spent all day trying to figure out where it came from to no avail. All I could locate was that it came from a section of my site where there's about 12,000 pages sharing the same channel. LOL.
You really can't unless you happen to be looking at your stats when the earning comes in. When you have 1 click and $5 in earnings, then you know. Google sure doesn't make it easy, do they?
oh i see,, i thought you guy look from somewhere in stats. actually I use adsense stats and analytics compare with channel name... that can tell how much I got click from any web, key, channel. adstracker and analytics Super! LOL