> For the complete documentation index, see [llms.txt](https://tyrantro.gitbook.io/tyrantro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tyrantro.gitbook.io/tyrantro/tyrantro-information/global-npc-sell-price-adjustment.md).

# Global NPC Sell Price Adjustment

## 💰 Global NPC Sell Price Adjustment

To maintain a healthy in-game economy and prevent abuse of NPC selling mechanics, the selling price of all items has been adjusted.

Instead of using the default NPC sell value, items will now return a percentage of their original **Buying Price (NPC Purchase Value)**. This helps reduce unintended zeny generation while keeping farming and trading balanced.

> 💡 **Purpose**
>
> * Prevent infinite zeny farming.
> * Reduce NPC selling exploits.
> * Encourage player-to-player trading.
> * Maintain long-term server economy.

***

### 📊 NPC Sell Price Formula

| Original Buying Price | NPC Selling Value |
| --------------------- | :---------------: |
| **0z – 500z**         |      **25%**      |
| **501z – 5,000z**     |     **12.5%**     |
| **5,001z – 10,000z**  |      **10%**      |
| **10,001z and above** |       **5%**      |

***

### 📝 Examples

| Item Buy Price |  NPC Sell Price  |
| :------------: | :--------------: |
|    **200z**    |   **50z (25%)**  |
|   **1,000z**   | **125z (12.5%)** |
|   **8,000z**   |  **800z (10%)**  |
|   **20,000z**  |  **1,000z (5%)** |

***

### ⚠️ Important Notes

* This adjustment only affects **NPC selling prices**.
* Item **buying prices remain unchanged**.
* Player-to-player trades and vending are **not affected**.
* This system is designed to preserve the server's long-term economic balance.

> 🛡️ These changes help ensure a fair and sustainable economy for all players.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://tyrantro.gitbook.io/tyrantro/tyrantro-information/global-npc-sell-price-adjustment.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.