Well the fiverr seller has just 6 gigs. They are all SEO related gigs.
Each gig has a delivery time of 5 days.
At the moment he has 759 "orders in que"
So he probably gets around 750 orders per week. I dont think there late orders because he has thousands of positive feedback comments.
So.. 750 orders per week x $4 = $3000
Then... $3000 (profit per week) x52 (weeks in a year) = $156,000
So that means the seller makes $156,000 per year of fiverr!! WOW!