Hy all, I was trying to figure out how pet aptitudes work so i found out how they work, its just simple maths 
For strength and intellect:
(Strength*strength aptitude)/1000=Patk value added on pet from strength
similarly for intellect just turns into Matk
For Endurance and hp:
(Endurance*Endu aptitudes)/500=Hp aded by endu
last but not least agility, its kinda tricky,
For Agility:
agility turns into Hit and crit of pet,
(agility*agility apts)/1500=Sum of hit and crit
Hit and crit are always in 1:2 ratio, so out of that sum
Sum/3= Hit added
Sum*2/3= Crit added
thats all, hope this info helps u in making ur pets more stronger, And sorry if i had mistakes in grammar or spelling,
Enjoy playing

For strength and intellect:
(Strength*strength aptitude)/1000=Patk value added on pet from strength
similarly for intellect just turns into Matk
For Endurance and hp:
(Endurance*Endu aptitudes)/500=Hp aded by endu
last but not least agility, its kinda tricky,
For Agility:
agility turns into Hit and crit of pet,
(agility*agility apts)/1500=Sum of hit and crit
Hit and crit are always in 1:2 ratio, so out of that sum
Sum/3= Hit added
Sum*2/3= Crit added
thats all, hope this info helps u in making ur pets more stronger, And sorry if i had mistakes in grammar or spelling,
