File:S2 Ink Saver Main Chargers.png

Formula
A = Ability Points = 10 &times; Mains + 3 &times; Subs

B = Ability formula = 0.99 &times; A &minus; (0.09 &times; A)2

C = % change due to middle-level Ink Saver Main = B / (200 / 3)

C = % change due to high-level Ink Saver Main = B / 60

D = Ink consumption = [base consumption] &times; (1 &minus; C)

Full charge count = 100 / D. Round down to a whole number.