How to get difference between two columns using matrix visual

[user2134_]

I have a table with treatment and control values, now I am creating a matrix by pivoting at Treatment and Control values. But I am not sure how to get difference between these columns. We have the option in PowerBI to get the Column totals, but how to get the difference?
I have used these in Matix:
Columns: Category
Values: A, B, C

Sample Data:

Category	A	B	C
Treatment	1	2	3
Treatment	1	2	3
Treatment	1	2	3
Treatment	1	2	3
Treatment	1	2	3
Control	1	2	3
Control	1	2	3
Control	1	2	3
Control	1	2	3

Expected:

	Treatment	Control	Delta
A	5	4	1
B	10	8	2
C	15	12	3

[user2134_]

Here is the visual which is matix. To get this visual, you just have to enable the option under Values section

[user2134_]

You cannot share the samepl pbix file here

[user2134_]

Beacause of confidentiality I cannot share it. But you can use that sample data

[Ahmedx]

Share sample pbix file to help you.