> For the complete documentation index, see [llms.txt](https://docs-v4.venus.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-v4.venus.io/technical-reference/reference-isolated-pools/interest-rate-models/jump-rate-model-v2.md).

# JumpRateModelV2

## Compound's JumpRateModel Contract V2 for V2 vTokens

Supports only for V2 vTokens

## Solidity API

#### getBorrowRate

Calculates the current borrow rate per block

```solidity
function getBorrowRate(uint256 cash, uint256 borrows, uint256 reserves, uint256 badDebt) external view returns (uint256)
```

**Parameters**

| Name     | Type    | Description                          |
| -------- | ------- | ------------------------------------ |
| cash     | uint256 | The amount of cash in the market     |
| borrows  | uint256 | The amount of borrows in the market  |
| reserves | uint256 | The amount of reserves in the market |
| badDebt  | uint256 | The amount of badDebt in the market  |

**Return Values**

| Name | Type    | Description                                                         |
| ---- | ------- | ------------------------------------------------------------------- |
| \[0] | uint256 | The borrow rate percentage per block as a mantissa (scaled by 1e18) |

***


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