For all i know it is simply impossible to know, too many factors are involved.
The advertiser pays a certain amount for 1000 views, some pay more and some less. Same goes for CPC´s, where clicks on ads that has been shown less times pays out better. So if its the first time a certain ad is shown in your app and you get a click on it, then you will surely get a dollar for that. But if its been shown a lot already then you will only get a few cents for it.
So you can pretty much just wait and pray! At so far as i know...