> For the complete documentation index, see [llms.txt](https://docs.akronswap.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.akronswap.com/introduction/dynamic-swap-fee-mechanism.md).
# Dynamic Swap Fee Mechanism
* Below is an explanation of how dynamic swap fee is determined.
* The *pool's price before swap* is equal to the price before the first swap of the block. Thus, every swap uses this reference price for the *pool's price before swap*.
* Below are a few examples of dynamic swap fee for ETH/USDC pool.