You will need to have some payment report in order to have all publisher payment details in one place.
How it can be done
1. Go to Publishers -> Payouts:
2. Press "New" to add the payout information:
Choose the target publisher from the list -> Set the amount -> Save the changes
You will see the payout information right after you add it:
How does the payout section work
The amount you add in your admin account is the amount you pay to your publisher so since you add it in the admin panel, it is then recalculated in your publisher account in a pub panel.
You have added 100 to some publisher payout information.
In the pub panel, the publisher will see that his Balance has decreased to 100.
That will mean he has received the payout to his credit card, paypal, etc. (where you have made this payment).