I am a new player with my first character. I chose Bioanalysis, Scavenging, and slicing as my 3 skills.
While doing my normal mission running I walk / killed / collected my way through the forests and earned about 20,000 credits from selling green goo and the low level materials. That was really good considering I had only earned around 9,000 from mission running the first 3 days.
In my market, bioanalysis earned me more tan scavenging on that day. With Slicing I think I am breaking about even on running missions and have not found as many slicing nodes.
If you are curious what I spent my credits on, it was armor for a lol 14 BH. Mostly on one helmet I thought was overpriced