The 13-year-old released the track globally last week and has since seen it climb the iTunes charts in numerous countries.
The song has allegedly been downloaded more than two million times, reports Metro.
Alternative reports suggest the singer has only managed to shift 40,000 downloads of the single. Billboard have estimated that the teen is only netting $24,900 (£15,300) a week from sales.
Still, the internet sensation is also expected to receive a share of over $20,000 (£12,000) from YouTube after the video for the track amassed over 37 million views.
Black's mum paid an initial $2,000 (£1,200) to the Ark Music Factory to create the song and film a music video for her daughter.
Black has received a massive amount of media attention since her video went viral, with a majority reacting negatively to the song.
She recently responded to criticism by stating that it "doesn't bother" her.
The singer has also gained famous fans, with Nick Jonas performing a rendition of her hit at a recent concert, and Simon Cowell stating that Black "hasn't done anything wrong".
