Nobody knows.
Click for boring math
We know they changed the formula
(Damage decreased - #7 by Gryphonknight)
But we don’t not know how. They may have tweaked the attack stat soft cap.
(Color Stacking: The Odds - #87 by Gryphonknight)
They may have changed the actual curve.
They may have changed it from additive ( -34% + -54% = -88% or 12% defense stat ) to multiplication ( 0.66 * 0.46 = 0.3036 or 30.36% defense stat ).
But it seems safe to say higher debuff first. So Evelyn ( -54% green ) then Buddy ( -34% all ).