File:S2 Bomb Defense Up Chart.png

Formula
B = Splatoon ability formula =

$$Damage for Burst Bombs = [base damage] * (1 - B / 75)$$

$$Damage for other bombs = [base damage] * (1 - B / 60)$$

$$Damage for special weapons = [base damage] * (1 - B / (600 / 7))$$