Strange behavior from AdMob

Hello friends,
I noticed some strange behavior from Admob last few days
The Estimated earnings for today is going up and down again
for example today I saw it first time it was 0.02$ after a while it became 0.13$ after a while went back to 0.02$
then 0.39$ then 0.25$ and so on.
Why is that? Is it normal or what?
Thanks in advance.

It’s normal and also why it is called estimated.
I had happened to see revenue of 10 EUR and then at the next refresh it was 1.45 EUR. The differences you see are at least smaller :slight_smile: