Basically the question was why are the values different 🤔 

So:

So if CPM is set at 150 for the Ad

This is split between owner and publisher 75/75

Say your post gets 30 impressions

If you own your own post for say 10 of the 30 impressions you get 10 at 150 and 20 at 75.

So 10×150=1500

20x75=1500

This equals 3000.

So divide this value by the 30 impressions.

3000÷30 =100 , so your average cpm for this post is $100.

Simple enough?

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