# Divide Variable

**Divide Variable** node is designed to perform division operations on a specified variable and store the result back in the same variable. This node is useful for scaling down values or performing fractional calculations within your workflow.

### Properties Panel

| **Field**     | **Description**                                                | **Required** |
| ------------- | -------------------------------------------------------------- | ------------ |
| Node name     | [Node Name](https://docs.cosmocloud.io/flow-builder/node-name) | true         |
| Variable Name | The name of the variable whose value will be divided.          | true         |
| Value         | The value by which the variable will be divided.               | true         |

### Usage

1. Specify the name of the variable whose value you want to divide.
2. Enter the divisor (the value by which the variable will be divided).

### Behaviour

* The node will retrieve the current value of the specified variable.
* It will then divide this value by the provided divisor.
* The result of the division will be stored back in the same variable, overwriting its previous value.
* If the variable doesn't exist, it'll raise an error.

### Returns

The node updates the value of the specified variable with the result of the division. You can access this updated value using Magical Autocomplete (e.g., `$.variables.<variable_name>`) in any node below this node.

### Example

Let's say you want to calculate a 50% discount on a price. You already have a variable `price`:

1. Set Variable name to `$.variables.price`
2. Set Value to `0.5`

If it exists and `price` was `10`, it will now be `5`.

### Best Practices

* Ensure that the variable you're dividing contains a numeric value to avoid type conversion errors.
* Consider adding a check for division by zero before this node if there's any chance the divisor could be zero.
* Ensure that the variable is initialised earlier