iamaho

Just curious if anyone know how Scamcharges are calculated by AP?

For example, if I book a flight that has one long segment in NH or TG, but everything else in that trip is with UA, I know I will get hit with Scamcharges due to the segment with NH or TG.

For example:
YYZ-EWR UA
EWR-FRA UA
FRA-NRT NH
NRT-HKG UA

Now if I already have to pay Scamcharges for NH or TG, would the amount of Scamcharge go up a lot - if I toss in a few AC segments to the mix (removing UA component)?

For example:
YYZ-FRA AC
FRA-NRT NH
NRT-HKG NH

Are Scamcharges calculated per leg?
Or do we just get hit with something in the range of C$500 regardless of how many segments on scamcharge airlines for a YYZ-Asia trip, once there is at least one scamchargable segment on NH or TG, etc?