DAX code for custom conditional formatting in matrix table

[Jim_PBI]

Hello! 

I'm attempting to build a matrix table that applies custom conditional formatting on a diverging scale using DAX - see example below. I have tried several iterations of DAX using RANKX with no success.

The visual is grouping by 'Product type' and 'RAG rating' and calculating the count of products in each RAG Criteria / count of products in 'Product type' and RAG rating' excluding the RAG criteria. I would then like to rank these values at row level (in the visual) and apply a custom diverging scale based on the RAG rating colour.

An example of the dataset is below

Product type	Product	Rag criteria	RAG rating
Electronics	Television	Total Income	Green
Electronics	Television	Gross Margin	Green
Electronics	Television	Operational	Amber
Electronics	Radio	Total Income	Green
Electronics	Radio	Gross Margin	Green
Electronics	Radio	Operational	Red
Electronics	Laptop	Total Income	Amber
Electronics	Laptop	Gross Margin	Amber
Electronics	Laptop	Operational	Green
Electronics	Speakers	Total Income	Green
Electronics	Speakers	Gross Margin	Green
Electronics	Speakers	Operational	Green
Electronics	Keyboard	Total Income	Red
Electronics	Keyboard	Gross Margin	Amber
Electronics	Keyboard	Operational	Green
Electronics	Headphones	Total Income	Green
Electronics	Headphones	Gross Margin	Green
Electronics	Headphones	Operational	Amber
Furniture	Sofa	Total Income	Amber
Furniture	Sofa	Gross Margin	Amber
Furniture	Sofa	Operational	Amber
Furniture	Armchair	Total Income	Green
Furniture	Armchair	Gross Margin	Green
Furniture	Armchair	Operational	Amber
Furniture	Bed	Total Income	Amber
Furniture	Bed	Gross Margin	Amber
Furniture	Bed	Operational	Amber
Furniture	Table	Total Income	Amber
Furniture	Table	Gross Margin	Green
Furniture	Table	Operational	Green
Furniture	Wardrobe	Total Income	Red
Furniture	Wardrobe	Gross Margin	Red

[lbendlin]

What are you ultimately trying to convey with the report? Your RAD limits seem very arbitrary.

Please provide sample data that fully covers your issue.
Please show the expected outcome based on the sample data you provided.