I want to update the sum of several items within a custom list with PowerApps (no matter how many) and appear in another column in another custom list also with PowerApps.
This column:
Have to show:

I want to update the sum of several items within a custom list with PowerApps (no matter how many) and appear in another column in another custom list also with PowerApps.
This column:
Have to show:
Not sure if I understand your question. Can you please provide more details?
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Thanks!
Hardit Bhatia