Thats 12 x 10 cents = 1.2 euro per week.
Your subscription costs 1 euro per week. Per saldo a profit of 0.2 euro per week. Congratulations, you're making a living!
But suppose all your friends their friends, and their friends, and so on, will all convince 3 members to join Sociobux.
In your network levels 3,4,5 and 10 you also earn comissions: level 3:27 x 10 cents a week = 2.70 euro level 4:81 x 10 cents a week = 8.10 euro level 5:243 x 10 cents a week = 24.30 euro level 10:59049 x 10 cents a week = 5904.90 euro
In the end you have a total revenue of 59412*0,1 euro = 5941.20per week!
Costs are still 1 euro, so you earned 5940.20 euro. That's a nice extra income!
Now everybody can do better than that. You're probably able to convince at least 6 friends to join the club. And they all know 5 friends to play the game.
Lets calculate what you can earn!