Summarizing a Calculated Column (Cost per Conversions)

[engelhard]

Hi,

This probably has a very simple answer, however in all my research I haven't managed to figure it out.

I need to summarize Cost per conversion as Total Cost divided by Total Goal Completions. In the below example, all rows are correct except the (summarized) total line (Sum), which should rather be about $14.13 instead of the sum of its parts.

I have played around with basic DAX to no avail.

Any help would be much appreciated!

[Greg_Deckler · Accepted solution]

What should be $14.13? The "CPC" or "Cost per Conversion" column? They are $38.8202 and $109.7424 respectively. Or something else? Regardless, this looks like a measure totals problem. Very common. See my post about it here: https://community.powerbi.com/t5/DAX-Commands-and-Tips/Dealing-with-Measure-Totals/td-p/63376

Also, this Quick Measure, Measure Totals, The Final Word should get you what you need:
https://community.powerbi.com/t5/Quick-Measures-Gallery/Measure-Totals-The-Final-Word/m-p/547907