---
title: delta
description: OpenBB SDK Function
---

# delta

Calculate the %change of a variable based on a specific column

Source Code: [[link](https://github.com/OpenBB-finance/OpenBBTerminal/tree/main/openbb_terminal/forecast/forecast_model.py#L335)]

```python
openbb.forecast.delta(dataset: pd.DataFrame, target_column: str = "close")
```

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## Parameters

This function does not take any parameters.

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## Returns

This function does not return anything

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