kamil on 23 June 2008
Going simply by userbase numbers should be multiplied by around 4.5 for PS3 and 3 for X360. However most of the times real multiplies are lower.
This may be due to piracy (probably more common in Other Europe and Others than in UK) and fact that UK is probably more front-loaded (I have no proof for this but ioi himself said that).
For example MGS4 multiplier for last week was 3.5, for NG2 debut week it was around 2.
