An important factor. Do we know the ratio/percentage of Streaming to be included with actual sales by the chart company? For instance on the Ultimate UK Chart, we use 5% Streaming/5% Airplay to the Download factor. I think Big Top 40 is still only using iTunes sales v airplay (in a something like 75:25 ratio) & they haven't started including streaming yet.

 

With regards to the Big Top 40 Show, I'm not sure if they can ever include streaming, since I believe the show is connected in some way to Apple? Perhaps when iTunes Radio gets released in the UK they might be able to include that, or another Apple streaming service. I might be wrong about that.

Streaming might only be 10% for the top places, but I suspect it could be getting on for 50% when you get down to #200 - presumably we'll get a better idea of this from the MW sales commentary next week.

 

It looks like my 50% streaming guess for lower-T200 was pretty close - as sales for that area appear to be close to double that of last week.