How to dynamically calculate an average

Hello,

I am trying to dynamically calculate averages.

For instance, 3 columns:

Detailed level:
Row 1: total sales $1,000 / total cases 1,000 / sales per case (price) $1 (1,000/1,000)
Row 2: total sales: $2,000 / total cases 500 / sales per case $4 (2,000/500)

Summary level:
Expected: sales per case $2 ($3,000/500)
Currently in Looker: sales per case $2.5 (average of $1 and $4)

I did create a custom measure, based on a custom dimension that calculate total sales/total cases, but it returns $2.5 as shown above, instea of $2.

Any assistance would be greatly appreciated!

Thanks

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3 REPLIES 3

Dawid
Participant V

Can you show us your data table and the calculations?

I am assuming your data looks like this
total_sales | total_cases
$1000 | 1000
$2000 | 500

  1. Now for sales per case, you can simply create a table calculation -> total_sales/total_cases

  2. And for average sales per case, you can use sum and create a table calculation -> sum(total_sales)/sum(total_cases)

With this, your final table should look something like
total_sales | total_cases | sales_per_case | average_sales_per_case
$1000 | 1000 | $1 | $2
$2000 | 500 | $4 | $2

To get a margin I need to do similar calculations. I would like to define it as a ready to use measure for my users. So, is there any possibility to realise this without a table calculation?

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