Bletchleyite
Veteran Member
If six first class seats (2+1) take the same space as eight standard class (2+2) then the required break even mark up is 33%, not 50%.
They don't as first class has more legroom. If you consider a Mk3 it was 76 Standard against 48 1st which is roughly 1.6, which is why this is the "classic" multiplier still used in much of Europe.