With 99 passengers accounted for, what does that leave the airline in terms
of profit? One passenger
In the early 1980s we recalculated the sector fuel needed for a Viscount charter series Southend-Palma, and as a result reduced the seats available by 4, from the full complement of, I think, 80 or so.
The tour operator acidly informed us that these 4 seats represented his total profit on the series. I'm sure that what with everything that's happened in the last 30 years that figure has worsened.
(The airline's owner/boss got over the difficulty by using an old trick; declaring Marseilles as the destination and Palma as a diversion, and then routinely diverting, but that's another story from the good old days, sorry, bad old days of buccaneering aviation and compliant regulators.......)