[Twin Grakata Riven help]

I got this Riven mod for the Twin Grakatas and I just need help on the pricing? Stats of the mod in chronological order are: 11.4% Impact, 4.4% Damage to Infested, 8.5% Ammo Maximum, and -3.8% Reload Speed. And maxed out stats are: 102.8% Impact, 39.3% Damage to Infested, 76.6% Ammo Maximum, and -34% Reload Speed