THEMA: what effects credits and cash?

can anybody help me? how credits and cash increase and decrease? and how these affects both credits and cash?
Fans / day: 7
max. fans: unlimited
status: activ
countries: all
languages: all
Age: Any
Gender: Male and female
Account age: any
only verified user: no
min. number of friends: 5
Ad Design: Normal

credits increase by every like you make, and decrease by every like who people make in your fanpage or every follow on your twitter acount, so if you make a like, you win 3 credits, and if another people make a like in your fanpage, you loose "x" ... so if you dont like to loose credits pause youre fanpage to get likes in you settings