Measure not recognizing columns

[Nigel29]

I'm new to Power BI and have really been struggling with these DAX formulas. I've been trying to do gross profit margin as a new measure but it seems the columns are not being recognised and I can't figure out why or where I went wrong. 

[SpartaBI · Accepted solution]

@Nigel29 you can't reference a "naked" column in a measure without first supplying to it a row context (in most cases the straight forward solution is just wrap it up with an aggregation function). In your case you just need to add an aggregation, probably SUM.
So write: DIVIDE (SUM('Table'[Column1]),SUM('Table'[Column2]))
 

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[Nigel29]

Would I need to alter the formula for it by affected by dates on a splicer

[SpartaBI]

@Nigel29 It will pick up any filter in the way I wrote you.

There is no calculate their that change the filter context

[Nigel29]

Thank you very much.

[SpartaBI]

@Nigel29 my pleasure 🙂
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