Originally Posted by
Kawliga
There’s a whole host of 8+ different taxes/fees, but carrier-imposed fees (which are included according to AA.com) aren’t specifically called out. For reference, on my last Mexico fare-calculated trip, RT cost was $167, and I earned 54 EQDs each way. That’s why the 75 seems reasonable to me as the base.
There are likely no carrier imposed fees. What is the base fare? That's probably all you are going to earn miles on.
The taxes and fees are not a percentage. Many of them are flat per-segment or per-trip fees. In particular Mexico has large tourism taxes that are flat.