File:MainPowerUpShootersDualies.png

Summary
The calculation method is from Splatoon 2 Abilities by Lean.

A = ability points = 10×Mains+3×Subs

B = (3.3A-0.027A^2)/100

B cannot exceed 1.0.

See the information in the table below to determine which step C to use.

Max effect 15%: C = 1+0.15×B

Max effect 16%: C = 1+0.16×e^(-(ln⁡(B)×ln⁡(0.375))/ln⁡(2))

Max effect 20%: C = 1+0.2×B

Max effect 25%: C = 1+0.25×B

Max effect 30%: C = 1+0.3×B

D = damage = [base damage]×C

For base damage less than 49.9, D cannot exceed 49.9. For base damage less than 33.3, D cannot exceed 33.3.