> For the complete documentation index, see [llms.txt](https://docs.polarity.finance/intro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.polarity.finance/intro/defi-products/lending-and-borrowing/lending-calculation.md).

# Lending Calculation

When supplying or borrowing assets, users change the utilization ratio of the pool leading to a change in interest rates. The major consequence is that all loans have a variable rate that will change dynamically during the life of the loan.&#x20;

### **Interest Rate Calculations**

Interest rates are calculated continuously and interest are compounded based on the current parameters of the protocol.&#x20;

### **Fees**

* Reserve Factor allocates a portion of the borrow interest to the protocol, while the remaining portion is distributed to the lenders.&#x20;
* Loan Origination Fee is charged when funds are borrowed. &#x20;
* Liquidation Fee is charged when a liquidation occurs.

The specific Reserve Factor, Loan Origination Fee and Liquidation Fee will be set by the protocol’s decentralized governance and adjusted over time.


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