Looks like:
On page 17, the " Fuel, including hedging losses 13,259 " is already a total fuel cost, inclusive of the mentioned hedge loss -4.49 (which is part of the HK$13.25).
In other words, -8.76 -4.49 = -13.25.
Fuel cost alone before hedging was 8,76. After hedging (loss) was 13.25...