If I recall, you get 20% more max stats for the first 100 points, then some more for add’l, but it slows down.
The formula I found is:
RESOURCES=((Base+Enchants+Jewelry Traits+(# of Attributes*Strenght of Attribute)+Set Bonuses)*(1+CP/100)+(Mundus*(1+(# of Divines*(Strenght of Divines/100))))+Food+(optional Necropotence))*(1+(Passive/Buff #1/100)+((Passive/Buff #2)/100))