Wouldn’t that actually be a 400% markup? $2 = no markup, $4 = 100%, $6 = 200%, $8 = 300%, $10 = 400%

Their decrease in profits is pushback for bad behavior though. So it would be like getting a 3.6% decrease in take home pay because you got demoted for misconduct.

Or alternately, that extra money was from a non-guaranteed bonus and you got a smaller bonus this year.