What this is
to date Mar'06 (itself to date Mar'07 minus year to March 2007) minus year to March 2006 sell-in. A positive Mar'05 base places DS hardware launch in year to March 2005, so DS age index = FY offset from year to March 2005.
Where it comes from
Our calculation from other figures in the trainer’s notes.
Show the working
- derived
- see method