[Survivor]

AIF varies based on city of departure
NAVCAN 9.00/15.00/20.00 depending on distance between cities

Prior April 2010 Tax (5%)
Airfare 230.00 11.50
Insurance 3.00 0.15
NAVCAN 15.00 0.75
ATSC 4.67 0.23
AIF 20.00 1.00
Total 272.67 13.63
Grand Total 286.30

After April 2010 - Change to travel anytime after increase - customer subject to new tax level
Tax increase depending upon province of commencement 12%, 13%, 15%
ATSC Fee increase to 7.12
After April 2010 Tax (12%)
Airfare 191.00 22.92
Insurance 3.00 0.36
NAVCAN 15.00 1.80
ATSC 7.12 0.85
AIF 20.00 2.40
Total 236.12 28.33

Per T&C if airfare less than original difference is forfeit (230-191=39CAD unusable)
ATSC increase 2.45
Tax increases
Fare 11.42
Insurance 0.21
NAVCAN 1.05
ATSC 0.62
AIF 1.40

Total Increases 17.51
Change Fee 75.00
Tax (12%) 9.00
Total 101.51

This is how the calculation is done (like it or not, held up by the courts; administered by Revenue Canada)
So pick away! (tax amounts beside each value