foxtrot and trojan are right, the figure depends on what is included.
Some of those figures mentioned here obviously include the cost of having half the airforce infrastructure and personnel as well in place which is a somewhat ridiculous way of allocating costs.
Flying hour costs should be simply stated as fixed "directly relevant" annual costs divided by estimated or actual annual hours and direct operating costs/hr added together.
Eg- If your annual maint costs are $50K for the work actually required on your aircraft then that is it, $50K.
You don't take into account that your MRO company has and staffs a $30 million building/facility and add that cost on top of your $50K bill when you work out your costs.
That cost is a fixed cost of the MRO which they cover/recover in what they charge you per hour for your maint etc.
Obviously the ADF is entirely funded by the taxpayer so "we" end up ultimately paying for it all anyway but it needs to be reported for all aircraft types via the same method/ formula. Preferably one like I have stated above that most of the world generally uses AFAIK