It counts the max. Avq you have from more than a week.
This is to avoid the old "heavy" manipulators we had the same day of the draws, once you know it, ofc, i recommend you, to do a "light"Avq decrease if you wont face a much higher Avq oppo on FAs.
So, this had a "demanded" reason really, and now because you didnt thought in It, but, Next time you know how to avoid that situation again
Dont decrease too much the Avq, or sell after play assos. Well, the best fórmula, is a long "light decreassing" to dont have all the weight of the Avq decrease in a single week.