> For the complete documentation index, see [llms.txt](https://naviprotocol.gitbook.io/navi-protocol-developer-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://naviprotocol.gitbook.io/navi-protocol-developer-docs/smart-contract-overview/dynamic-calculator.md).

# Dynamic Calculator

This module includes functions to dynamically calculate a user's health factor, collateral value, loan value, APY, and more, accounting for potential changes in the user's balances.

It is utilized for risk management and user-interface purposes, such as determining whether a user's actions might put their account at risk of liquidation, or providing insights into the potential impact of a user's intended actions on their account.

### dynamic\_health\_factor

> **Description:** This function calculates a user's dynamic health factor, considering potential changes in their supply and borrow balances. It helps assess the user's risk level in relation to liquidation.

> **Use Cases:** This function is used when estimating how a user's health factor would be affected by an increase or decrease in their supplied or borrowed assets. It is critical for risk management and liquidation prevention.

```rust
public fun dynamic_health_factor<CoinType>(
  clock: &Clock,
  storage: &mut Storage,
  oracle: &PriceOracle,
  pool: &mut Pool<CoinType>,
  user: address,
  asset: u8,
  estimate_supply_value: u64, 
  estimate_borrow_value: u64, 
  is_increase: bool
): u256 {}
```

### ~~dynamic\_calculate\_apy~~

{% hint style="danger" %}
Since the upgrade to V3 incentives, V2 is no longer in use, so its APY will remain at 0. Don't use this function to fetch APY data.
{% endhint %}

> **Description:** This function calculates the dynamic APY for IncentiveV2 based on changes in a user's supply and borrow balances. It provides both the supply APY and borrow APY.

> **Use Cases:** This function is used to estimate how changes in a user's supply and borrow amounts will impact their expected yield. It is essential for users deciding whether to adjust their positions in a lending pool.

```rust
public fun dynamic_calculate_apy<CoinType>(
  clock: &Clock, 
  storage: &mut Storage, 
  pool: &mut Pool<CoinType>, 
  asset: u8, 
  estimate_supply_value: u64, 
  estimate_borrow_value: u64, 
  is_increase: bool
): (u256, u256){}
```


---

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