Charisma/Fallout 76

Charisma is one of the seven primary statistics in the SPECIAL system.

Gameplay
Modifies: Rewards from Group Quests, Barter Bonus. Sharing a perk card requires the player character to have a Charisma that is three times the rank of the card.

At a Charisma of 1 there is +0% Experience Points (XP) and +0% caps rewards from group quests. Each additional level of Charisma increases both XP gain and caps gain by +5%, except for the jump from Charisma = 4 to Charisma = 5, where the XP gain and caps gain increases by +10%. At the maximum Charisma of 15, the XP gain and caps gain is +75%.

Increasing

 * Bobblehead: Charisma (+2 for 1 hour or 2 hours with Curator)
 * Armor and Clothing:
 * "Casual" underarmor with a treated lining mod (+1)
 * "Casual" underarmor with a resistant lining mod (+1)
 * "Casual" underarmor with a protective lining mod (+2)
 * "Casual" underarmor with a shielded lining mod (+3)
 * Legendary Effects:
 * Charisma (+1)
 * Mutations:
 * Herd Mentality (+2 if grouped, -2 if solo)
 * Perks:
 * Magnetic Personality (+1 or +2 for each teammate excluding yourself)
 * Consumables:
 * Food:
 * Corn pone (+2)
 * Mothman egg omelette (+2)
 * Sweet roll (+3)
 * Slice of Birthday Cake (+3)
 * Drinks:
 * Beer (+1)
 * Blackwater Brew (+1)
 * Cranberry moonshine (+1)
 * Mountain honey (+1)
 * New River Red Ale (+1)
 * Oak Holler Lager (+1)
 * Old Possum (+1)
 * Pickaxe Pilsner (+1)
 * Rodgers' Reserve beer (+2)
 * Simple ash rose tea (+1)
 * Chems:
 * Day Tripper (+3)
 * Grape Mentats (+5)
 * X-cell (+2)

Barter
Charisma affects item buy/sell values; the value of an item for buying or selling is its innate value multiplied by either the buying price modifier or the selling price modifier. While Hard Bargain will increase Charisma during bartering, it provides less benefit for those with higher charisma.

Selling items to vendors caps at 25% of the item's value, the buying modifier caps at 175%, and items will be purchasable at this price with 25 Charisma. Buy price decreases from 2.5 by 0.1 for every even level of Charisma up to 10, then from 2 by 0.02 for every single level of Charisma. Sell price increases from 0.1 by 0.025 for every odd level of Charisma up to 10, then from 0.2 by 0.005 for every single level of Charisma.