They are a sales estimate. It's not perfect because it doesn't catch weeks where songs sell 300K+ and it doesn't catch the overall fluctuation in the market (some weeks overall sales are higher than others).
I agree, it should not be decreasing so soon after its release. Especially seeing as it's gaining audience at radio so quickly, demand for the song should be increasing.
Oh please. We all should know quality is not the core for the top spot.
Exactly. And it's definately not worse than the rest of the top 10. IMHO.
That's why it should be a celebration when songs like Viva la vida or Fireflies hit the top spot.
Exactly. And it's definately not worse than the rest of the top 10. IMHO.
That's why it should be a celebration when songs like Viva la vida or Fireflies hit the top spot.