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# SumProduct

> Use the Sigma SumProduct function to return the sum of the product of values in a series of columns.

The **SumProduct** function returns the sum of the product of values in a series of columns.

The **SumProduct** function is an aggregate function.

Aggregate functions evaluate one or more rows of data and return a single value.

In a table element, the aggregate is calculated for each grouping. For information on how to add a grouping with an aggregate calculation to a table, see [Group columns in a table](/docs/create-and-manage-tables#group-columns-in-a-table).

In a table with no groupings, the aggregate is calculated for each row. For information on how to calculate summary statistics across all rows in a table, see [Add summary statistics to a table](/docs/create-and-manage-tables#add-summary-statistics-to-a-table).

To learn more about using aggregate functions, see [Building complex formulas with grouped data](https://www.sigmacomputing.com/resources/training-videos/table-grouping-and-functions#complex-formulas).

## Syntax

`SumProduct(column, ...)`

Function arguments:

* **column** (required) - A column to be multiplied and summed. You can enter in any number of columns to be multiplied together.

## Example

```
SumProduct([Quantity], [Unit Price])
```

* Finds the sum of the product of the columns `[Quantity] * [Unit Price]`
* This function is an alias for `Sum([Quantity] * [Unit Price])`

## Related resources

* [Sum](/docs/sum)
* [SumIf](/docs/sumif)