web
You’re offline. This is a read only version of the page.
close
Skip to main content

Notifications

Announcements

Community site session details

Community site session details

Session Id :
Power Platform Community / Forums / Power Apps / Dynamic Real-Time Budg...
Power Apps
Answered

Dynamic Real-Time Budget Totals in Model-Driven Apps: Calculating Item Costs in Budget Headers

(0) ShareShare
ReportReport
Posted on by 5

Hi everyone,

I'm a Power Apps newbie who's been building a practice model-driven budget app for travel approval. It has two tables:

  • Budget Headers: Tracks trip details like traveler name, destination, and date.
  • Budget Items: Lists individual expense items with their expected cost.

Obviously, one budget will have multiple items. Here's my challenge:

I want a "Total Cost" field in Budget Headers that automatically reflects the summed cost of all its corresponding items in Budget Items. Ideally, this should be a real-time calculation, where adding a new item instantly updates the Total Cost in the associated budget.

Can someone guide me on how to achieve this dynamic total cost calculation? 

I have the same question (0)
  • Verified answer
    Drew Poggemann Profile Picture
    9,287 Most Valuable Professional on at

    Hi @Eric19 ,

    Nothing available out of the box (would require custom code) for realtime rollup calculations but you can utilize rollup fields that will allow you to sum up the child records.  


    Check out this learn article for creating rollup fields:  https://learn.microsoft.com/en-us/training/modules/create-define-calculation-rollup-fields/ 

  • Eric19 Profile Picture
    5 on at

    Thank you

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Forum hierarchy changes are complete!

In our never-ending quest to improve we are simplifying the forum hierarchy…

Ajay Kumar Gannamaneni – Community Spotlight

We are honored to recognize Ajay Kumar Gannamaneni as our Community Spotlight for December…

Leaderboard > Power Apps

#1
WarrenBelz Profile Picture

WarrenBelz 765 Most Valuable Professional

#2
Michael E. Gernaey Profile Picture

Michael E. Gernaey 343 Super User 2025 Season 2

#3
Power Platform 1919 Profile Picture

Power Platform 1919 272

Last 30 days Overall leaderboard