Teras Kasi Archive

What do these do exactly? Ranged defense decreases you getting hit by a blaster, melee defense descreases the amount of damage you take is what i got from reading... but how?

Does having 50 ranged defense = 50% chance to hit me?

Does having 50 melee defense = 50% damage reduction?

50 melee defense = 50 less damage done?

Anyone know the formulas on these stats?

same with defense vs _____ is that a % or something else? +40 Def vs KD (when it works) = what?