For a Europe Latitude pass, $1470 per one way all in, they allocated $1388.18. Not sure how, but it's not too bad. My spreadsheet currently tells me I should end up 2016 with about $20,500.
For a return in P, somehow they allocated more than 50% of the overall price. Again may have to do with taxes and surcharges, that differ each way.
Another issue is how they divide an origin-to-destination fare into the various legs. I did not check but could be that they allocate proportionally to AQMs?