> For the complete documentation index, see [llms.txt](https://coral-finance.gitbook.io/coralfinance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://coral-finance.gitbook.io/coralfinance/points-hub/unlocking-cortokens/base-rate.md).

# Base Rate

At the moment of acquiring corTokens, a user gains ***Base Unlocking Rate***. It starts unlocking corTokens to generate “passive income” for the user, as there are no additional costs involved during the unlocking process. The unlocked corTokens can be used in the following ways:

* Selling on Coral DEX for instant profits
* Adding liquidity
* Transferring to other users or participating in other protocols

## Algorithm of Base Unlocking Rate 

<figure><img src="https://132275135-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvX1zHC3XTDBMPtoIqeza%2Fuploads%2FxnPaAk7MhjRtWw5OmXDQ%2Fimage.png?alt=media&amp;token=bf8b4f65-eb57-4cc5-986f-6aa40c721f53" alt="" width="375"><figcaption></figcaption></figure>

**a** is the constant term.

**b** is the volatility that determines the upper bound and lower bound of the curve.&#x20;

**K** is the adjustment parameter, which influenced by the specific configuration of point distributions of the project.&#x20;

**amount** is the total amount of cortokenized points on Coral.

The log part indicates that the Base rate changes based on the total amount of the converted points. The log function guarantees that the rate increases with the quantity. However, as the total amount becomes sufficiently large, the growth curve gets flatter. This design balances the earnings distribution between users with large amount points and those with fewer points.