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## Dynamic Baseline for Percentage Difference

Hi, I have the following formula:

``````Revenue % difference from 1H 2019 =
VAR __BASELINE_VALUE =
CALCULATE(
[Revenue],
'Revenue by Product'[Period] IN { "1H 2019" },
ALL('Revenue by Product'[Period ID])
)
VAR __MEASURE_VALUE = [Revenue]
RETURN
IF(
NOT ISBLANK(__MEASURE_VALUE),
DIVIDE(__MEASURE_VALUE - __BASELINE_VALUE, __BASELINE_VALUE)
)``````

I would like to make the _BASELINE VALUE dynamic i.e. changing "1H 2019" to "2H 2019" to "1H 2020" and so on. The period has a corresponding period ID i.e. 1H 2019 = 1, 2H 2019 = 2 and so on.

Is it possible as I want to calculate the percentage difference between two consecutive bars i.e. 1H 2019 and 2H 2019, 2H 2019 and 1H 2020 and so on. Appreciate any help please!

1 ACCEPTED SOLUTION
Community Support

You will need a dim table like below:

column1   column2

1H 2019    1

2H 2019    2

1H 2020    3

2H 2020    4

Then use column1 as x-axis and replace { "1H 2019" } to selectedvalue([ column2])+1/-1

Best Regards,

Jay

Community Support Team _ Jay
If this post helps, then please consider Accept it as the solution
to help the other members find it.
2 REPLIES 2
Community Support

You will need a dim table like below:

column1   column2

1H 2019    1

2H 2019    2

1H 2020    3

2H 2020    4

Then use column1 as x-axis and replace { "1H 2019" } to selectedvalue([ column2])+1/-1

Best Regards,

Jay

Community Support Team _ Jay
If this post helps, then please consider Accept it as the solution
to help the other members find it.
Super User

You are describing the basic feature of filter context.

https://community.powerbi.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-...
Please show the expected outcome based on the sample data you provided.