Trading and item pricing: Difference between revisions

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(Formalize price mod math)
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| description = How an item price is determined in Baldur's Gate 3
| description = How an item price is determined in Baldur's Gate 3
| image = Trading User Interface.jpg
| image = Trading User Interface.jpg
}}
}}{{hatnote|A calculator is available for this article at [[Widget:PriceCalculator]].}}
[[File:Trading User Interface.jpg|alt=The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).|thumb|The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).]]
[[File:Trading User Interface.jpg|alt=The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).|thumb|The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).]]


'''Trading''' is a central mechanic in Baldur's Gate 3. Depend on which character is talking a given trader, including the trader's attitude to the character, the character's [[Persuasion]] skill level, and the difficulty setting of the game, a trade price multiplier is calculated. This multiplier is than applied to each item's inherent value, giving the prices for the character.
'''Trading''' is a central gameplay mechanic in [[Baldur's Gate 3]] revolving around the sale and barter of [[Items]] and [[Gold]]. Depending on which [[Characters|Character]] is talking a given [[Trader]], including the trader's [[Attitude]] to the character, the character's [[Persuasion]] value, and the [[Difficulty]] setting of the game, a trade price multiplier is calculated. This multiplier is then applied to each item's inherent value, giving the prices for the character.


The price modifier is calculated as:
The price modifier is calculated as:


: <tt>P = 2.5 - persuasion modifier - difficulty modifier - attitude modifier</tt>
: <tt>P = max(1.0, 2.5 - persuasion modifier - difficulty modifier - attitude modifier)</tt>
 
An item's value is multiplied by the price modifier when buying, and divided by the modifier when selling. Favorable modifiers are negative and unfavorable ones positive.


An item's value is multiplied by the price modifier when buying, and divided by the modifier when selling, i.e. the smaller the total price modifier the better for the player.


== Modifiers ==
== Modifiers ==


=== Persuasion skill modifier ===
=== Persuasion modifier ===
A character's [[Persuasion]] skill modifier affects prices. Positive modifiers will make prices more favorable (higher when selling, lower when buying) and vice-versa. Each Persuasion modifier point changes prices by 5%. In Explorer difficulty, characters receive an additional Persuasion modifier if they are proficient in Persuasion, as detailed below.
A character's [[Persuasion]] value affects prices. Positive values will make prices more favourable (higher when selling, lower when buying) and vice-versa. On [[Difficulty#Explorer|Explorer difficulty]], characters have a higher Persuasion value if they are proficient in Persuasion because the [[proficiency bonus]] is higher on that difficulty. Each Persuasion value point changes the total modifier by 0.1., as detailed below.


: <tt>Persuasion modifier = Persuasion skill modifier * 0.05</tt>
: <tt>Persuasion modifier = Persuasion value × 0.1</tt>


=== Game difficulty ===
=== Game difficulty ===
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==== Explorer difficulty ====
==== Explorer difficulty ====


In Explorer difficulty, the difficulty modifier is 0.5, meaning all characters receive a 20% favorable bonus to prices. If a character is proficient in [[Persuasion]], they receive an additional Proficiency modifier depending on their level. This increases the persuasion modifier.
On [[Difficulty#Explorer|Explorer difficulty]], the difficulty modifier is 0.5.  
 
If a character is proficient in [[Persuasion]], they will benefit from the higher [[Proficiency]] bonus this difficulty provides, depending on their [[character level]], as detailed in the table below. This, in turn, increases the Persuasion modifier.
{| class="wikitable"
{| class="wikitable"
! Level !! Bonus
! Character level !! Bonus (explorer difficulty)
|-
|-
| 1 - 4 || +2
| 1 4 || +4
|-
|-
| 5 - 8 || +3
| 5 8 || +5
|-
|-
| 9 - 12 || +4
| 9 12 || +6
|}
|}


==== Tactician difficulty ====
==== Tactician difficulty ====
In Tactician difficult, the difficulty modifier is -0.5, meaning all characters receive a 20% price penalty.
In Tactician difficulty, the difficulty modifier is &minus;0.5, meaning the total modifier is increased, making it more expensive to buy and lowering the sell price.


=== Trader attitude ===
=== Trader attitude ===
[[File:Trader attitude.jpg|alt=The meter displaying a trader's Attitude. Hovering over the meter displays the exact amount of Attitude gained.|thumb|The meter displaying a trader's Attitude. Hovering on the meter displays the exact amount of Attitude gained.]]
[[File:Trader attitude.jpg|alt=The meter displaying a trader's Attitude. Hovering over the meter displays the exact amount of Attitude gained.|thumb|The meter displaying a trader's Attitude. Hovering on the meter displays the exact amount of Attitude gained.]]


A trader's [[Attitude]] score represents how friendly a trader NPC is with a certain character. Each point of Attitude modifiers prices by 0.25%. The maximum attitude modifier at 100 Attitude is 2.5, or a 25% price adjustment compared to 0 Attitude.
A trader's [[Attitude]] score represents how friendly a trader NPC is with a certain character. Each point of Attitude changes the total modifier by 0.005, resulting in a maximum attitude modifier of 0.5 at 100 Attitude.  
 
: <tt>Attitude modifier = Attitude * 0.025</tt>


Attitude is visible in the Trading interface under the trader model. Hovering on the meter displays the exact Attitude score. Attitude is per-character, and can be modified by friendly or hostile actions against an NPC. One of easiest ways to gain Attitude is by gifting [[Gold]] or other items to a trader using the Barter interface. The amount of gold required to gain attitude scales depending on the level of the character.
: <tt>Attitude modifier = Attitude × 0.005</tt>


[[Attitude]] is visible in the Trading interface under the trader model. Hovering on the meter displays the exact Attitude score. Attitude is per-character, and can be modified by friendly or hostile actions against an NPC. One of easiest ways to gain Attitude is by gifting [[Gold]] or other items to a trader using the Barter interface. The amount of gold required to gain attitude scales depending on the level of the player character.


{| class="wikitable"
{| class="wikitable"
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|4500
|4500
|}
|}
==== When is it optimal to gift? ====
Assuming you are only looking to buy once from a trader, we can calculate the cutoff above which gifting saves more than the value gifted.
: <tt>price reduced per gift value = base value / level modifier × 0.005 > 1</tt>
If this value is above 1, every gold gifted is worth more in discounts, so you save by raising attitude to 100.
: <tt>base value > 200 × level modifier</tt>
For example, at level 4, this cutoff would be 200 × 8 = 1600. If you are buying more than 1600 total base value of items, you actually spend less total gold by gifting 800 gold to raise the trader's attitude to 100 first. Note that this refers to '''base value''' of items, not the price you see at 0 attitude, which is usually more than 2 times the base value (see price modifier at the top of the article).


== Talking character ==
== Talking character ==
The trade price modifier is set depending on the character that initiatives dialogue with a trader. Even if the active inventory is switched in the trader screen, the first character's trade price modifier remains in use. It is thus a good idea to initiate all trade dialogues with the character that has the best trade multiplier.
The trade price modifier is set depending on the character that initiates the dialogue with a trader. Even if the active inventory is switched in the trader screen, the first character's trade price modifier remains in use. It is thus a good idea to initiate all trade dialogues with the character that has the best trade multiplier.
 
== See also ==
* [[Widget:PriceCalculator]]


== References ==
== References ==
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# Annie Shi, ''[https://www.thegamer.com/baldurs-gate-3-bg3-how-to-raise-merchant-attitude/ "Baldur’s Gate 3: How To Raise Merchant Attitude"]. thegamer.com''
# Annie Shi, ''[https://www.thegamer.com/baldurs-gate-3-bg3-how-to-raise-merchant-attitude/ "Baldur’s Gate 3: How To Raise Merchant Attitude"]. thegamer.com''


[[Category:Gameplay Mechanics]]
{{NavGameplay}}
 
[[Category:Gameplay mechanics]]

Latest revision as of 12:42, 24 March 2024

A calculator is available for this article at Widget:PriceCalculator.
The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).
The trading user interface in Baldur's Gate 3 (Trader's Attitude displayed in the bottom right corner).

Trading is a central gameplay mechanic in Baldur's Gate 3 revolving around the sale and barter of Items and Gold. Depending on which Character is talking a given Trader, including the trader's Attitude to the character, the character's Persuasion value, and the Difficulty setting of the game, a trade price multiplier is calculated. This multiplier is then applied to each item's inherent value, giving the prices for the character.

The price modifier is calculated as:

P = max(1.0, 2.5 - persuasion modifier - difficulty modifier - attitude modifier)

An item's value is multiplied by the price modifier when buying, and divided by the modifier when selling, i.e. the smaller the total price modifier the better for the player.

Modifiers[edit | edit source]

Persuasion modifier[edit | edit source]

A character's Persuasion value affects prices. Positive values will make prices more favourable (higher when selling, lower when buying) and vice-versa. On Explorer difficulty, characters have a higher Persuasion value if they are proficient in Persuasion because the proficiency bonus is higher on that difficulty. Each Persuasion value point changes the total modifier by 0.1., as detailed below.

Persuasion modifier = Persuasion value × 0.1

Game difficulty[edit | edit source]

Depending on the game difficulty set, the player receives certain advantages or disadvantages.

Explorer difficulty[edit | edit source]

On Explorer difficulty, the difficulty modifier is 0.5.

If a character is proficient in Persuasion, they will benefit from the higher Proficiency bonus this difficulty provides, depending on their character level, as detailed in the table below. This, in turn, increases the Persuasion modifier.

Character level Bonus (explorer difficulty)
1 – 4 +4
5 – 8 +5
9 – 12 +6

Tactician difficulty[edit | edit source]

In Tactician difficulty, the difficulty modifier is −0.5, meaning the total modifier is increased, making it more expensive to buy and lowering the sell price.

Trader attitude[edit | edit source]

The meter displaying a trader's Attitude. Hovering over the meter displays the exact amount of Attitude gained.
The meter displaying a trader's Attitude. Hovering on the meter displays the exact amount of Attitude gained.

A trader's Attitude score represents how friendly a trader NPC is with a certain character. Each point of Attitude changes the total modifier by 0.005, resulting in a maximum attitude modifier of 0.5 at 100 Attitude.

Attitude modifier = Attitude × 0.005

Attitude is visible in the Trading interface under the trader model. Hovering on the meter displays the exact Attitude score. Attitude is per-character, and can be modified by friendly or hostile actions against an NPC. One of easiest ways to gain Attitude is by gifting Gold or other items to a trader using the Barter interface. The amount of gold required to gain attitude scales depending on the level of the player character.

Gold required to increase a trader's Attitude
Level Gold required to raise Attitude by 1 Gold required to raise Attitude from 0 to 100
1 4 400
2 5 500
3 6 600
4 8 800
5 10 1000
6 14 1400
7 18 1800
8 24 2400
9 30 3000
10 36 3600
11 45 4500
12 45 4500

When is it optimal to gift?[edit | edit source]

Assuming you are only looking to buy once from a trader, we can calculate the cutoff above which gifting saves more than the value gifted.

price reduced per gift value = base value / level modifier × 0.005 > 1

If this value is above 1, every gold gifted is worth more in discounts, so you save by raising attitude to 100.

base value > 200 × level modifier

For example, at level 4, this cutoff would be 200 × 8 = 1600. If you are buying more than 1600 total base value of items, you actually spend less total gold by gifting 800 gold to raise the trader's attitude to 100 first. Note that this refers to base value of items, not the price you see at 0 attitude, which is usually more than 2 times the base value (see price modifier at the top of the article).

Talking character[edit | edit source]

The trade price modifier is set depending on the character that initiates the dialogue with a trader. Even if the active inventory is switched in the trader screen, the first character's trade price modifier remains in use. It is thus a good idea to initiate all trade dialogues with the character that has the best trade multiplier.

See also[edit | edit source]

References[edit | edit source]

  1. GaRy van Thos Gaming, "How Merchant and Traders Attitude work and effect Prices in Baldur's Gate 3". youtube.com
  2. Annie Shi, "Baldur’s Gate 3: How To Raise Merchant Attitude". thegamer.com