Help me with defense calculation please!

[Kagamine]

  "PhysicalDamage": "Random(((BaseDamage + (ScalingStat * ScaleFactor))) * CritMultiplier * .975, ((BaseDamage + (ScalingStat * ScaleFactor))) * CritMultiplier * 1.025) * (100 / (100 + V_Defense))",

So, the damage calculation is pretty simple, but I have no idea how the defense works in the last part of this line, I want to work with small numbers but I need a lot of defense to decrease the received damage, can someone help me with this please? :c
I want something like 2 defense points decrease received damage by 1 point!

[Kagamine]

So I just noticed I don't need to change the numbers, I can change the equation too lol
I was going to delete this topic but I will leave this information here just in case someone need this!