How to add count of top n to smart narrative

[kb177]

I want to show count of top n in the smart narrative based on the visual,  I'm able to get max value of the total count 

eg. count of top 5 departments out of total departments is .....

[kb177]

say there 10 departments in the organization and each of them have seperate cost or revenue etc.

Smart narrative should show the total amount of top 5 departments out of the total amount of 10 departments

eg. Total amount of Top 5 departments is 123 out of total amount of 456 of all the 10 departments  

I'm working on powerbi Web version *

[Fowmy]

@kb177 

Can you clarify what exactly is needed with some sample and the expected results ?