Sum values from another table referenced by multiple select field

Hi All, first post and a Coda newbie (kind of)

This is probably a basic question, and there might be a far better way to do it (please say so!)
I am trying to sum the values in another table so that I can have a customized display of different product options given different components of those product options.

Basically: Table of components and their costs.
In another table I want to specify the components in each product, and have the total cost displayed.
Thanks in advance !

Here is a link
https://coda.io/@russell-seres/test-doc-for-help

@Russell_Seres

Try this: comps.Cost.Sum()

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You are a genius !! haha thanks very much for helping so quickly with my basic question :slight_smile: :smile:

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