Quote:
Originally posted by Cz!
7 years following the iTunes charts and I still don't get how the popbars work. 
I thought it was a 24-hour rolling chart. Then how come "Focus" got its first red update 12 hours into its run? Did they change the rolling time to 12 hours? This kind of things wouldn't happen 2 years ago. |
What's strange about getting a red update even if the chart was a 24 hours rolling one? Red updates just mean a song is slowing down compared to the #1 song.
If Focus sold 24 copies in the last 24 hrs and Hello sold 100, then it's at 24%, 2 hours later, Hello sold 105 copies in the previous 24hrs while Focus sold 25 copies, it's at 23.8%
