$20 per post
x 35 max posts a week
------------------------
$700 worth of SPEC tokens per week
For Senior Members
$25 per post
x 35 max posts a week
------------------------
$875 worth of SPEC tokens per week
For Hero Members
$30 per post
x 35 max posts a week
--------------------
$1050 worth of SPEC tokens per week
For Legendary Members
$35 per post
x 35 max posts a week
------------------------
$1,225 worth of SPEC tokens per week
I think it also depends on how many posts an individual have in a week so if someone posted more than the minimum posts per week then pay per post will be applied. These is just based on my own understanding of the campaigns payment rules and calculations. So you better ask manager Sylon for clarifications.
Hope this helps you.