Thanks Roger.
I calculate that had 2012 membership fee income reduced by 50% and had the other fees from federations reduced by 25% (both reductions in line with the Kasparov team promise) then income would have been 300,903 Euros lower, an amount representing close to 10% of total income (total income = 3,015,644 Euros).
Perhaps this is affordable - there was a surplus of income over expenses of 634,203 Euros. That said, 2012 was an Olympiad year and net income from that event appears to be 775,598 Euros (income of 831,750 Euros less expenses of 56,152 Euros). Against this, there were legal expenses of 150,918 Euros (a reduction from 467,032 Euros in 2011).
I see that most of FIDE's income in 2012 came from taking a cut of the prize funds of the events it organises. In 2012 this source of income provided 1,671,563 Euros - as well as income from the Olympiad there was income from the World Championship of 486,254 Euros (against expenses for the same event of 17,957 Euros).
Maybe for 2012 FIDE wanted to rebuild its reserves after incurring significant legal expenses in 2011 and making a loss in that year of 512,579 Euros. (The Reserve Fund at the end of 2012 stood at 1,858,581 Euros.)
So far as I can see, no figures are provided for income from sponsorship or for prize fund outgoings. And what about venue hire costs for the Olympiad and World Championship match?
I think I'd like to know more about how the Kasparov team intends to finance FIDE.