> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anlytic.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PercentOfTotal

Returns the percent of total for the aggregate expression or column. Equivalent to aggregate / Subtotal(aggregate, mode, parameters).

**Category:** `aggregate`

**Syntax:**

```
PercentOfTotal([aggregate_or_column], |mode|, |parameters|)
```

**Returns:** `Float`

**Context Filtering:** ✗ No

## Parameters

| Name                  | Type   | Required | Description                                                                                                                                |
| --------------------- | ------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `aggregate_or_column` | `any`  | ✓ Yes    | The aggregate function (e.g., Sum(\[Sales])) or column to base percent calculations on. If a column is provided, it will be used directly. |
| `mode`                | `text` | ✗ No     | Percent mode ('grand\_total', 'column', etc.).                                                                                             |
| `parameters`          | `any`  | ✗ No     | Additional parameters for subtotal if available (such as partition/group column).                                                          |

## Validation

* Minimum parameters: 1
* Maximum parameters: 3

## Examples

```
PercentOfTotal(Sum([Sales]), "column", [Category])
```

Returns percent of total sales grouped by Category.

```
PercentOfTotal([Revenue], "column", [Region])
```

Returns percent of total for \[Revenue] column by Region.