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					Originally posted by fabian_phipps  Apparently it's a 48 hour rolling chart.... But that can't be true can it? (I don't fully understand what people mean when they say it is a ;rolling chart'). It must be 1 or 2 hour. | 
	
 I am taking MLJ and 'You make me feel' as an example.
Rolling period - Sales of 'You Make Me Feel' as a % of MLJ in the past 4 hours
48 hours - 220%
24 hours - 130%
12 hours - 80%
6 hours - 60%
Which one of these seems to be correct?