In an evaluation of the iTunes Top 100 chart rankings from Tuesday to Thursday, Billboard has discovered that songs that went up in price from $.99 to $1.29 dropped in sales rankings, though the long-term impact of the drops on revenue is less clear. Data from Wednesday, the first day following the price increase, shows that the 40 songs on the Top 100 chart priced at $1.29 dropped an average of 5.3 places from Tuesday, while the 60 remaining $.99…
