My formula is:
For example full Diego 50112 damage & 50% BB & 40% GD & 3xfreeze
1 missile 50112 x 2,5 = 125280
4missile = 501120
With GD
50112 x (1+0,5+0,5+0,5-0,4)=105235 damage
4 missile = 420940
If you reduce the 40% GD of the whole damage then you only have 300672 damage. With this damage...