Ayumi Hamasaki Sekai - View Single Post - ORICON Rankings for BLUE BIRD
Thread: ORICON Rankings for BLUE BIRD
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  #165  
Old 30th June 2006, 04:54 PM
Mad_Cactuar Mad_Cactuar is offline
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Join Date: Jul 2005
Location: Malaysia.
Posts: 6,442
lol no xD

a/(1-r)
a = the first number in the progression (first week sales)
r = the second number in the progression divided by the first number (2nd week divided with first week)

Although r can be tricky, you can get a better shot at the formula with some analysis of the current music industry, NINKI ratings, and artist reputation.

complicated, ne?



This means that BLUE BIRD's sales are 268,333 if it decreases by approximately 3/5 weekly.
Last edited by Mad_Cactuar; 30th June 2006 at 05:05 PM.
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