# Calculation/Relation with previous (list) data in inline list? Global var?

**URL:** <https://community.glideapps.com/t/calculation-relation-with-previous-list-data-in-inline-list-global-var/33326>\
**Category:** Ask for Help\
**Created:** [October 20, 2021, 7:49am UTC](https://community.glideapps.com/t/calculation-relation-with-previous-list-data-in-inline-list-global-var/33326 "2021-10-20T07:49:06Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![MIKAHEL](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/mikahel/32/25039_2.png) [@MIKAHEL](https://community.glideapps.com/u/MIKAHEL)\
**Post date:** [October 21, 2021, 3:03pm UTC](https://community.glideapps.com/t/calculation-relation-with-previous-list-data-in-inline-list-global-var/33326/4 "2021-10-21T15:03:43Z")

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Hi Stefan,  
[**here**](https://vimeo.com/manage/videos/637513289/6a7812854c) you can watch the explanation, hopefully is clear enough, and on the following link you can copy my market application to have a look as I did

> **[My App](https://karter.glideapp.io)**
>
> put in the kart and pay ;)

Best regards

Ps: in the video I called you Perez, confusing you with @SantiagoPerez 🤭

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