File:Special Saver Chart.png

Formula
Points to charge special weapon after respawn = [base points to charge weapon after respawn]*(0.5-(0.99*x-(0.09*x)^2)/60)

There is an assumption that the player died with a full special gauge.

Base points to charge after respawn:
 * Inkzooka: 110p
 * Echolocator & Kraken: 100p
 * Bomb Rush & Bubbler & Inkstrike: 90p
 * Killer Wail: 80p