> For the complete documentation index, see [llms.txt](https://derby-finance.gitbook.io/derby-finance-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://derby-finance.gitbook.io/derby-finance-docs/products/vaults/user-interactions/relevant-view-functions.md).

# Relevant view functions

There are a few view functions that can be useful to the user. 

`function getVaultBalance() public virtual view returns(uint256)`

Gives the balance of the vault (all `deposits - withdrawals + liquidityPerc`). The balance is the maximum what a user can withdraw without pulling funds from the underlying protocols.

`savedTotalUnderlying()`

The total amount of funds in the underlying protocols. Together with the `balanceOf()` this defines the maximum what a user can withdraw when also pulling from the underlying protocols. If a user wishes to withdraw more it should do so via a `withdrawalRequest`.

`exchangeRate()`

Defines the exchangeRate in vaultCurrency per LP token  in the scale of the vaultCurrency. For example USDC/LPtoken with 6 decimals of scale (like USDC).