How to calculate a difference

[Anonymous]

Hello, I am new to Power BI, and I am trying to solve one (probably easy) task, but not sure how.

Let me simplify it:

I have data in such format:

YEAR   Company Result

2023      A             100

2022      B             150

2022      C             120

2021      D             250

2022      B               50

...

Then I already have a visual - table created:

       2021 - Result    2022 - Result    2023 - Result

A       0                         0                      100

B       0                        200                     0

C       0                        120                     0

D      250                      0                        0

Total  250                    320                    100

And I need to add one more column to this existing visual to calculate "Difference" 2023-2022. How can I do it, please?

Thanks.

Katarína

[Anonymous]

many thanks for your help!

[eliasayyy · Accepted solution]

Give you made a matrix table

Please try

Difference = 

VAR _y = [result]

VAR _ly = CALCULATE([result],calendar[year] = MAX(Calendar[year]) -1)

RETURN

_y - _yl