Quote:
Originally posted by staracademy1990
Kworb I hope this doesn't bother you, but could you tell me how do you make the worldwide chart?
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Good thing I saved this post
Methodology:
It uses the iTunes top songs chart of 23 countries. Each country has the same weight. To calculate the points, the following formula is used: pts = exp(-0.02 * (x-1))*1000 rounded to the nearest integer, where x is the iTunes position. In numbers, this means:
#1 = 1000
#2 = 980
#10 = 835
#20 = 684
#30 = 560
#50 = 375
#100 = 138
#150 = 51
#200 = 19
And quickly becomes negligible for very low positions. Only the highest charting version of a song counts. Because there are 23 countries, the theoretical maximum is 23000 points, which happens when a song is #1 in each country.