Hold on--180(let's say fifty). So 18050 * 20 is...
Holy crap. $36100.
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m = 9
p = 18155 - 98 - 1000 + 8 + 90
Highest ID, IDs 2-99 have not been sold, missing 2k ID range, and then amount of 2k IDs sold
p = 17155 (ironically)
m * p = $154,395
So Badspot earned only $154k
Also, with your calculations, you're off by $324900
Also, if you think about, Badspot earned $1,400 in the past 6 days.