Increase charge flask recovery mechanic

Hello,

"

normal monster grants 1 charge, a magic monster grants 3.5 charges, a rare monster grants 6 charges, and a unique monster grants 11 charges

By default, according to wiki, we gain 1 charge for every normal monster slain,

How does "perpetual" affix interact when slaying normal monster ? i.e. i have a perpetual ruby flask (40 increases charge recovery), will i get 1 charge every normal monster ? Does it only increases charge against magic & rare enemies ?

Thanks

Bump

Flask do store partial charges, so yes, you can get 1.4 charges if you have 40% increased flask charges gained.