What's the difference between estimated and finalized earnings?
The estimated earnings that you see in AdMob are estimates of your recent account activity. These earnings aren't finalized until the end of the month and won't necessarily reflect the amount you'll ultimately be paid.
Finalized earnings are accurate earnings amounts that include all revenue you will be paid for validated clicks and impressions. These amounts are equal to the current balance found on your Payments page. After our earnings records are processed and verified by the 2nd of the month, your current balance from the previous month is posted to the Payments page.