Black widow perk output

In the description of this perk it is said that men are easier/much easier to persuade. Does it have some kind of additional charisma equivalent? E.g. 1 level of this perk is like adding 2 charisma when speaking to men or does it have different mechanics?

Solution 1:

It does not appear to have an impact on charisma, per se, but according to this site, there is a bonus to persuasion chance, which is broken down as follows:

Persuasion mechanics for this Perk are simple: Rank 1 Black Widow/Lady Killer gives a 10% easier chance to persuade, Rank 2 20%, and Rank 3 a whopping 30% increase to persuade in dialog.

Source: http://www.carls-fallout-4-guide.com/special-stats/charisma/perks/black-widow-lady-killer.php