# Operation with 2 parameters in a single table

**URL:** <https://forum.inductiveautomation.com/t/operation-with-2-parameters-in-a-single-table/91691>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [June 11, 2024, 2:18pm UTC](https://forum.inductiveautomation.com/t/operation-with-2-parameters-in-a-single-table/91691 "2024-06-11T14:18:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Miguel\_Cimildoro](https://avatars.discourse-cdn.com/v4/letter/m/53a042/32.png) [@Miguel\_Cimildoro](https://forum.inductiveautomation.com/u/Miguel_Cimildoro)\
**Post date:** [June 11, 2024, 2:18pm UTC](https://forum.inductiveautomation.com/t/operation-with-2-parameters-in-a-single-table/91691/1 "2024-06-11T14:18:56Z")

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Good morning everyone,

I am trying to do a calculation of two parameters in the report section, but I think I am missing something in the syntax so that these two values give me a result, in this case a multiplication.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/3/e/3e335eadf26bd7d9f2b1509132a96bbfa78116b1.jpeg)

what I am using

@date\_now@\*@constant@  
result  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/6/8/68b62fb801fb66e98786e6f9d5a069084fc810b7.png)

How can I perform this calculation?

regards

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**Author:** ![Brandon\_Peterson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/brandon_peterson/32/32960_2.png) [@Brandon\_Peterson](https://forum.inductiveautomation.com/u/Brandon_Peterson)\
**Post date:** [June 11, 2024, 3:27pm UTC](https://forum.inductiveautomation.com/t/operation-with-2-parameters-in-a-single-table/91691/2 "2024-06-11T15:27:07Z")

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> [@Miguel\_Cimildoro](#):
>
> @date\_now@\*@constant@

The `@` sign is a special symbol used only in the reporting module. An expression inside two of these symbols is called a key chain expression (not related to Ignition's Expression language).

You can find more info about key chain expressions here:

> **[keychains.pdf](https://www.reportmill.com/support/keychains.pdf)**
>
> 73.27 KB

And a link to the docs for the software that the reporting module was built on can be found here:  
[https://www.reportmill.com/support/DesDocs.html](https://www.reportmill.com/support/DesDocs.html)

The answer to your question (assuming `date_now` has a data type that supports multiplication) is this:  
`@date_now*constant@`

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<div class="post-metadata">

**Author:** ![Miguel\_Cimildoro](https://avatars.discourse-cdn.com/v4/letter/m/53a042/32.png) [@Miguel\_Cimildoro](https://forum.inductiveautomation.com/u/Miguel_Cimildoro)\
**Post date:** [June 11, 2024, 3:34pm UTC](https://forum.inductiveautomation.com/t/operation-with-2-parameters-in-a-single-table/91691/3 "2024-06-11T15:34:28Z")

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> [@Brandon\_Peterson](#):
>
> @date\_now\*constant@

its works! @date\_now\*constant@

thanks Brandon