''GSK hit back at any allegations of profiteering. In July, its chief executive, Andrew Witty, refused to apologise for the swine flu revenues, adding that sales of the group's flu treatment, Relenza, had rocketed from £57m last year to more than £600m since the outbreak of the virus.''
So 600 million pounds since March /April 2009.
7% of $1300 million.( using .56 ) Thats $91 million dollars to BTA since the outbreak. Higher royalty if you count in the 10% for South Africa, NZ, Australia,Indonesia etc.