Revision as of 15:34, 13 August 2026

Current Test: Vendor Pricing

Scope

Using EQ Traders Vendor Pricing as a reliable'ish source, we can assume the following:

Charisma has meaningful breakpoints, especially between ~61-76 and ~100+, after which additional CHA has diminishing or no effect.
Faction breaks into three functional tiers for pricing:

Apprehensive, Indifferent or better, and Dubious or worse. (Indifferent-or-better vendors give identical prices for the same charisma--Ally does not improve prices beyond Indifferent.)
Dubious-or-worse vendors won’t sell to you at all.
Apprehensive vendors will sell, but prices are significantly worse unless charisma is very high.

These two facts define the scope of our current testing: you only need to test Apprehensive and Indifferent factions across a range of charisma values.

Control Variables

Vendor: Use one vendor for the entire test.

Item: Use one item with a stable base price (e.g., Water Flask, Bandage, but the higher priced the better).

Faction level: You must be able to reliably set your faction to:

Apprehensive
Indifferent
(Optional) Amiable / Kindly / Warmly / Ally -- but these will all give identical prices.

Charisma value: You need a reproducible way to set CHA to specific values (e.g., 50, 75, 85, 100, 120, 125, 150, 175, 200) -- (recommend crafted CHA jewelry and farming some CHA armor)

CHA Test Table

Item Tested: Diamond

Base Price: 200p

Max Sell Price: 194.476p

Merchant: Serenk Greybloom

Charisma	Apprehensive	Indifferent	Apprehensive	Indifferent	Apprehensive	Indifferent
	Raw Plat Cost		Percent		Inverted
57	138.819	155.477	69.4095%	77.7385%	144.0725%	128.6364%
58	139.311	156.028	69.6555%	78.0140%	143.5637%	128.1821%
59	139.807	156.584	69.9035%	78.2920%	143.0544%	127.7270%
60	140.306	157.143	70.1530%	78.5715%	142.5456%	127.2726%
61	142.807	160	71.4035%	80.0000%	140.0492%	125.0000%
62	142.867	160	71.4335%	80.0000%	139.9903%	125.0000%
63	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
64	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
65	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
66	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
67	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
68	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
69	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
70	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
71	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
72	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
73	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
74	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
75	142.857	160	71.4285%	80.0000%	140.0001%	125.0000%
76	150.714	168.8	75.3570%	84.4000%	132.7017%	118.4834%
77	151.429	169.6	75.7145%	84.8000%	132.0751%	117.9245%
78	152.143	170.4	76.0715%	85.2000%	131.4553%	117.3709%
79	152.857	171.2	76.4285%	85.6000%	130.8412%	116.8224%
80	153.571	172	76.7855%	86.0000%	130.2329%	116.2791%
81	154.286	172.8	77.1430%	86.4000%	129.6294%	115.7407%
82	155	173.6	77.5000%	86.8000%	129.0323%	115.2074%
83	155.714	174.4	77.8570%	87.2000%	128.4406%	114.6789%
84	156.429	175.2	78.2145%	87.6000%	127.8535%	114.1553%
85	157.143	176	78.5715%	88.0000%	127.2726%	113.6364%
86	157.857	176.8	78.9285%	88.4000%	126.6969%	113.1222%
87	158.571	177.6	79.2855%	88.8000%	126.1265%	112.6126%
88	159.286	178.4	79.6430%	89.2000%	125.5603%	112.1076%
89	160	179.2	80.0000%	89.6000%	125.0000%	111.6071%
90	160.714	180	80.3570%	90.0000%	124.4447%	111.1111%
91	161.429	180.8	80.7145%	90.4000%	123.8935%	110.6195%
92	162.143	181.6	81.0715%	90.8000%	123.3479%	110.1322%
93	162.857	182.4	81.4285%	91.2000%	122.8071%	109.6491%
94	163.571	183.2	81.7855%	91.6000%	122.2711%	109.1703%
95	164.286	184	82.1430%	92.0000%	121.7389%	108.6957%
96	165	184.8	82.5000%	92.4000%	121.2121%	108.2251%
97	165.714	185.6	82.8570%	92.8000%	120.6899%	107.7586%
98	166.429	186.4	83.2145%	93.2000%	120.1714%	107.2961%
99	167.143	187.2	83.5715%	93.6000%	119.6580%	106.8376%
100	167.857	188	83.9285%	94.0000%	119.1490%	106.3830%
101	168.571	188.8	84.2855%	94.4000%	118.6444%	105.9322%
102	169.286	189.6	84.6430%	94.8000%	118.1433%	105.4852%
103	170	190.4	85.0000%	95.2000%	117.6471%	105.0420%
104	170.714	190.476	85.3570%	95.2380%	117.1550%	105.0001%
105	171.429		85.7145%		116.6664%
106	172.143		86.0715%		116.1825%
107	172.857		86.4285%		115.7026%
108	173.571		86.7855%		115.2266%
109	174.286		87.1430%		114.7539%
110	175		87.5000%		114.2857%
111	175.714		87.8570%		113.8213%
112	176.429		88.2145%		113.3600%
113	177.143		88.5715%		112.9031%
114	177.857		88.9285%		112.4499%
115	178.571		89.2855%		112.0003%
116	179.286		89.6430%		111.5536%
117	180		90.0000%		111.1111%
118	180.714		90.3570%		110.6721%
119	181.429		90.7145%		110.2360%
120	182.143		91.0715%		109.8038%
121	182.857		91.4285%		109.3751%
122	183.571		91.7855%		108.9497%
123	184.286		92.1430%		108.5270%
124	185		92.5000%		108.1081%
125	185.714		92.8570%		107.6925%
126	186.429		93.2145%		107.2794%
127	187.143		93.5715%		106.8701%
128	187.857		93.9285%		106.4640%
129	188.571		94.2855%		106.0608%
130	189.286		94.6430%		105.6602%
131	190		95.0000%		105.2632%
132	190.476		95.2380%		105.0001%

Tested as a Barbarian BRD/NEC/SHM with a combination of positive and negative charisma gear. Later tests done as a Human BRD/NEC/SHM.

Testing steps:

Equipped negative charisma gear to drop from 75 base charisma to 58
Confirmed sell price with several merchants to rule out the merchant being greedy
Checked sell price with merchant, then changed gear to increase charisma by 1 and checked again
Repeated this process until I reached the max sell price and confirmed it kept going.
Turned in Tumpy Tonics to increase faction from Apprehensive to Indifferent
Repeated tests
Increased faction to Amiable
Repeated first few tests and received same indifferent results. Proceeded to test breakpoints and every 5 charisma to confirm
Increased faction to Kindly
Repeated Amiable tests to confirm faction did not matter
Sold Diamond to vendor
Tested prices at several points to confirm that the merchant's buy and sell modifiers are inverted
Equipped all CHA gear and destroyed a Diamond to confirm destroy rate
Tested with Barbarian Shaman vendor at Ally. Received Indifferent+ prices with a +11 CHA bonus
Tested a non-class Barbarian vendor and received the same results
Tested a Human Bard vendor at Ally. Received normal Indifferent+ prices.
Changed race from Barbarian to Human with an Origin of South Qeynos
Tested Human Bard vendor. Received +11 CHA
Tested non-Bard Human vendor. Received +11 CHA
Tested several vendors in North Qeynos. +11 CHA
Travelled to Freeport and tested human merchants. +11 CHA
Tested Linadian at Ally. No CHA bonus
Used Sneak to test an Arcane Scientists merchant at Indifferent. +11 CHA
Travelled to Neriak Foreign Quarter
Human merchants at Ally gave +11 CHA
Halflings merchants at Ally give no bonus
Dark Elf merchants at Ally give no bonus
Used Guise of the Deceiver to Illusion: Dark Elf
Merchants gave the same results as previous
Travelled to Qeynos and increased faction with Bloodsabers to Apprehensive
Tested and got the same +11 CHA bonus

Findings

Apprehensive and Indifferent use completely different functions
Sell and buy multipliers are inverted
Max sell value is 1/1.05 (~95.24%)
Merchants of the same race give a +11 CHA bonus
Apprehensive Breakpoints
- 62-75 CHA - 1/1.4 buy rate (~71.43%)
- 132 CHA - Max sell value
Indifferent+ Breakpoints
- 62-75 CHA - 1/1.25 buy rate (80%)
- 104 CHA - Max sell value
Destroying an item sells it at the equivalent of Apprehensive with 75 CHA: 1/1.4 (~71.43%)
Indifferent+ is 0.4% extra sell value per point of CHA from 76-103. Unknown why the function breaks at 79.
Apprehensive is 0.357% per point of CHA from 76-131. Every 3-4 levels will get an extra 0.0005%, but that's likely just rounding to copper values