# Formula **`Formula`** allows users to perform custom calculations or transformations that do not exist in the original data. You can use mathematical operators or apply SQL functions on columns. The result will be a new column at the very right side of the table as the last column. All calculations are done at the row level. That is, it will not change the number of rows in a table. Thus, **`Formula`** does not support aggregation functions, such as `SUM()` or `COUNT()`. ![](/files/-McBfujySE8xQFKJND5k) Please visit [Supported functions ](/acho-studio/data-prep-projects/applying-actions/tools/sql-editor/supported-math-functions-in-formula.md)page for all the operators that Acho Formula supports. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.acho.io/acho-studio/data-prep-projects/applying-actions/tools/formula.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.