Billboard 200 Makeover

The Billboard 200 albums chart will premiere its biggest upgrade in more than 23 years, transforming from a pure sales-based ranking to one measuring multi-metric consumption. Beginning with the top 10 revealed on Wednesday, Dec. 3, on Billboard.com (the full chart will post online the following day and in the Billboard issue dated Dec. 13), the chart, which currently tracks the top 200 albums of the week by sales alone, will be the first to include on-demand streaming and digital track sales (as measured by Nielsen Entertainment) by way of a new algorithm. It is the most substantial methodology update since May 1991, when Billboard first used Nielsen’s point-of-sale data — SoundScan — to measure album sales.

http://www.billboard.com/biz/articles/news/chart-alert/6320100/billboard-200-makeover-album-chart-to-incorporate-streams