Level up

VFE upgrade needs to consume FUN, and the upgrade cost is calculated according to this formula:

$LevelCost(Lv+1)=T_{cost} * N_{cap} * B * [Lv * (G-1)+\frac {E_{base}+S_{base}+L_{base}-D_{base}} 2]$

• $T_{cost}$ is a constant, the system value is 7.

• $G$ is the VFE growth point, the value is different according to the Rarity, the value refers to Upgrade Growth Attribute Points.