Solved US CPM is $37 for a vid and $2 for another?

[WertyLSPD]

Hey!
I have two videos that I posted and got 2k views and 3k views, respectively.

The 2k views video has for the US views:
Impressioned based CPM - $27
Playback based CPM - $37

The 3k views video has for the US views:
Impressioned based CPM - $1,79
Playback based CPM - $2,57

Why is that? And the bad thing is that on the video with the low CPM I've got 184 playbacks from the US

 

[Fourth Wall Games]

Different videos means different adverts. YouTube has various algorithms that decide which adverts to play and so forth.

Your top video clearly had better stats in YouTube's eyes and so got the higher paying adverts. It is also to do with clicks and so forth, so if someone clicked the adverts you get more etc etc.