This is not all that of a noob problem. I get this question all the time!
Take a look at this. Esp. The second option if you already have a clients table.
We often get asked about creating an aggregate or summary table for a tables with multiple rows. These are two ways I like to do it. Would love to hear about other ways you do it or places where you have used something like this.
Base Table-
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Using Grouping to create the summary/aggregate view (Filtered with a control so it is easy to change the view based on date ranges -
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Using a filter formula in a new table. This is useful when you want data from multiple table or wa…