Market Share Difference

[mariamovasheli]

Hello, I want to calculate market share difference Within Quarters and can you please tell me How ?

sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>}Volume)

/

sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>} TOTAL Volume)

I need To Write Something like This

[Gysbert_Wassenaar]

perhaps like this:

(sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>}Volume)

/

sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>} TOTAL Volume))

-

above(

sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>}Volume)

/

sum({< <Owner>, QuarterNum={'$(=max(QuarterNum))'}>} TOTAL Volume)

)

If that doesn't work then please post a small qlik sense app with some example data.