Does that napkin math subtract the cost of the same delivery flight but without the stunt? I didn't read about the flight but I assume that delivery was happen

Does that napkin math subtract the cost of the same delivery flight but without the stunt? I didn't read about the flight but I assume that delivery was happening anyway, with or without the stunt. I am guessing it took an hour or two extra, so the fuel and pilot salary cost should only be what was extra in addition to the regular flight amount?