Subtotal amounts per category in Looker dashboards – possible?

Hi everyone,

I’m trying to build a P&L table in Looker dashboards with the following requirements:

  • Items should be sorted by category

  • A subtotal row should appear below each category

I’ve run into several issues and so far haven’t found a working solution:

  • Tried using dashboard properties like show_subtotals: false, but they didn’t help

  • Tried creating a derived table to calculate subtotals, but ran into major problems with filters and sorting

  • Tried the Explore/Visualization approach, which does generate subtotals, but it applies them to all columns and groupings, whereas I only need them for a single column

Question: Is it even possible to implement this kind of subtotal layout in Looker? Or is there a workaround/best practice for this use case?

Any advice would be greatly appreciated!
Here’s the template I’m working with: