# Welke flow voor dynamische prijs berekening

**URL:** <https://community.homey.app/t/welke-flow-voor-dynamische-prijs-berekening/145447>\
**Category:** Questions & Help\
**Created:** [November 16, 2025, 9:33pm UTC](https://community.homey.app/t/welke-flow-voor-dynamische-prijs-berekening/145447 "2025-11-16T21:33:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Anthon](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/anthon/32/17429_2.png) [@Anthon](https://community.homey.app/u/Anthon)\
**Post date:** [November 16, 2025, 9:33pm UTC](https://community.homey.app/t/welke-flow-voor-dynamische-prijs-berekening/145447/1 "2025-11-16T21:33:15Z")

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Hello ?

Who can help me put the formula into a flow that calculates the dynamic price including VAT?  
I can’t find where in the formula I can enter {price}+costs\*1.21.

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<div class="post-metadata">

**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [November 16, 2025, 11:06pm UTC](https://community.homey.app/t/welke-flow-voor-dynamische-prijs-berekening/145447/2 "2025-11-16T23:06:47Z")

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Handy, a NL topic title with an English body…

Pls Translate your Topic, it is an English Category.

For Dutch: [[HowTo]⚡️Nieuw in Homey: dynamische elektriciteitsprijzen - Wat in te vullen](https://community.homey.app/t/howto-nieuw-in-homey-dynamische-elektriciteitsprijzen-wat-in-te-vullen/141913)

For English: [[HowTo] ⚡️ Introducing Dynamic Electricity Prices - Contract Values to enter](https://community.homey.app/t/howto-introducing-dynamic-electricity-prices-contract-values-to-enter/141218)