Increased/ Decreased Chance​

■Increased Chance
The increases caused by Increased Chance to Deal a Critical Hit,
Increased Chance to Resist a Critical Hit, Increased Chance to Hit,
Increased Chance to Evade, Increased Chance to Inflict a Debuff,
and Increased Chance to Resist a Debuff
add to each activation decision’s likelihood of a success,
which is determined based on the stats of a character and target.
Additionally, the infliction of a debuff
is calculated based on the skill’s chance to inflict the debuff.

・For Chance to Deal a Critical Hit
When the likelihood of success of the decision for a character to deal
a critical hit is 60% due to their CRIT and a target’s CRIT RES,
and the character is enhanced with a
30% Increased Chance to Deal a Critical Hit,
their attack’s final chance to deal a critical hit
will be calculated as follows.
▶60%+30%=90%​
If the target is enhanced with a
30% Increased Chance to Resist a Critical Hit,
the character’s attack’s chance to deal a critical hit
will be calculated as follows.
▶60%-30%=30%

・For Chance to Evade
When the likelihood of success of the decision for a character’s attack to hit
is 50%, and the character is enhanced with a 30% Increased Chance to Hit,
the character’s attack’s chance to hit the target
will be calculated as follows.
▶50%+30%=80%
If the target is enhanced with a
30% Increased Chance to Evade,
the character’s attack’s chance to hit the target
will be calculated as follows.
▶50%-30%=20%

・For Chance to Inflict a Debuff
When a skill’s chance to inflict a debuff is 50%,
the debuff’s likelihood of success is 10%
due to the character’s Debuff ACC and a target’s Debuff RES,
and the character is enhanced with a 20% Chance to Inflict a Debuff,
their final chance to inflict a debuff will be calculated as follows.
▶50%×(100%+10%+20%)=65%
If the target is enhanced with a
20% Increased Chance to Resist a Debuff, 
the character’s chance to inflict a debuff will be calculated as follows.
▶50%×(100%+10%-20%)=45%

■Decreased Chance
The decreases caused by Decreased Chance to Deal a Critical Hit,
Decreased Chance to Resist a Critical Hit, Decreased Chance to Hit,
Decreased Chance to Evade, Decreased Chance to Inflict a Debuff,
and Decreased Chance to Resist a Debuff
subtracts from each activation decision’s likelihood of a success,
which is determined based on the stats of a character and target.
Additionally, the infliction of a debuff
is calculated based on the skill’s chance to inflict the debuff.

・For Chance to Deal a Critical Hit
When the likelihood of success of the decision for a character to deal
a critical hit is 30% due to the character’s CRIT and a target’s CRIT RES,
and the character is afflicted with a
40% Decreased Chance to Deal a Critical Hit,
their attack’s final chance to deal a critical hit
will be calculated as follows.
▶60%-30%=30%
If the target is afflicted with a
30% Decreased Chance to Deal a Critical Hit,
the character’s attack’s chance to deal a critical hit
will be calculated as follows.
▶60%+30%=90%

・For Chance to Hit​
When the likelihood of success of the decision for a character’s attack to hit
is 50%,
and the character is afflicted with a 30% Decreased Chance to Evade,
the character’s attack’s chance to hit the target​
will be calculated as follows. 
▶50%-30%=20%
If the target is afflicted with a
30% Decreased Chance to Evade,
the character’s attack’s final chance to hit the target
will be calculated as follows.
▶50%+30%=80%

・For Chance to Inflict a Debuff
If a skill’s chance to inflict a debuff is 50%,
the debuff’s likelihood of success is 10%
due to the character’s Debuff ACC and a target’s Debuff RES,
and the character is afflicted with a 20% Decreased Chance to Inflict a Debuff,
their final chance to inflict a debuff will be calculated as follows.
▶50%×(100%+10%-20%)=45%
If the target is affliced with a 20% Decreased Chance to Inflict a Debuff,
the character’s chance to inflict a debuff will be calculated as follows.
▶50%×(100%+10%+20%)=65%