Sharing my experience, i accepted total 8 jobs and I have done 7 jobs, 6 jobs are 5 star excluding one(client was too busy to leave feedback & it was my first contract), and besides all that I accepted one job but client ended it without any payment so it never showed on my profile. I don't know what's wrong or how UPWORK is calculating score, bc amuse I give super extra time to clients so they're completely satisfied. And I make sure I complete and tests very task assigned.
The best part was when I started a project during Jul 2015 - Aug 2015 my j.s was 75% and after few days while project was in progress my j.s suddenly fell between to 60%-65% and after few weeks when I completed the project my j.s went to 58% and since then it's on 58%....
Someone please Explain me. Also view my profile.