Formula references enable you to refer to formulas applied to columns, series, and other sub-components within the same Klip (this includes multi-component Klips). Formula references refer to formulas **before** actions (for example, filtering and grouping) or date properties are applied.

**Note**: If you want to reference a formula **after** actions or date properties are applied, use** **results references.

In the image below, the formula or data selection: `@B:B`

, is evaluated using the lightning bolt button on the far right of the formula bar. The **Evaluation Results** display the dates as the formula output. However, the dates shown in the Klip preview have a different format because a date property was applied.

Formula reference always refers to the formula output or the **Evaluation Result** of the formula.

Although formula references save time in creating duplicate formulas,** every formula reference is recalculated which means there is no efficiency gained in executing the formula by using a formula reference. **This does not apply to** **results references**.**

To use a formula reference:

- Type
**!**into the formula bar. - Select the sub-component with the formula you want to reference from the drop-down list.