what is the average token (in ETH) that a jr member participant can earn by participating in Twitter and facebook campaign?
just give a rough estimate
1% of the raised tokens will be assigned to the bounty program. Of this 1%, each part of the bounty program gets a different allocation and at the end of the token sale that allocation is distributed among the participants according to their stakes.
So each stake will have a value of
(Total SHP raised)*0.01*(% allocated to bounty section) / (total number stakes of participants in bounty section)
In the case of Twitter and Facebook, each get 5% of the pool so in a hypothetical case where the token sale raises $60M, each campaign would get 60M*0.01*0.05=$30k
How much each participant gets depends on the number of tweets/retweets, the number of followers/friends, and the number of participants in the bounty campaign.