> For the complete documentation index, see [llms.txt](https://zendevx.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zendevx.gitbook.io/docs/actions-the-power-within/untitled/definition-group/perform-formula.md).

# Perform Formula

This action allows you to write a formula and assign it to a Variable or Control.

Here all the calculations are performed as defined in formula and final value is assigned.

![](https://2445524190-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M_LKN8sx9rUwRZIqIu7%2F-M_jZ_3j7D2k2lI9IVx8%2F-M_jcgzkgt0CiVqSG3sh%2F12.02_Actions_Definition_Variable_Define_Formula.png?alt=media\&token=451dc7a0-cdb8-4669-b9b4-177f12e15f28)