Chances in excess of 100%

By default, chance-based stats cap at 100% chance for the result to occur. However, some chances can exceed 100%. Unless otherwise specified, a chance higher than 100% is equivalent to 100% chance - the chance always succeeds. But some effects may scale based on how high the chance is or how much it exceeds 100% by.

Ascendancy passives

Critical Strike (Amazon)
Chance to Hit with Attacks can exceed 100% Gain additional Critical Hit Chance equal to 25% of excess chance to Hit with Attacks