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Helper I

## Current year volume vs previous 5 year average volume

Hi Everyone

What I have:

I have a sales data table with a row for each sale.

I have a calendar lookup table with a row per date.

I have a 'countrows' measure that calculates how many rows are in the table, giving me the total number of sales.

I have a line graph showing the total number of sales over a period of time.

Goal:

I would like to be able to display total number of sales, by month, for the current year on a line graph, with the average number of sales, by month, for the previous years on the same graph. Any suggestions on how to get the past 5 years average would be appreciated.

Below is an example of what I am looking to achieve.

1 ACCEPTED SOLUTION
Super User

Hi,

Please check the below picture and the attached pbix file.

Orders count: =
CALCULATE ( COUNTROWS ( Sales ), Dates[Year] = MAX ( Dates[Year] ) )

Orders count prev 5 years avg: =
VAR selectedyear =
MAX ( Dates[Year] )
VAR previous5years = selectedyear - 5
VAR newdatetable =
CALCULATETABLE (
VALUES ( Dates[Year] ),
FILTER (
ALL ( Dates ),
Dates[Year] < selectedyear
&& Dates[Year] >= previous5years
)
)
RETURN
AVERAGEX ( newdatetable, [Orders count:] )

If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.

2 REPLIES 2
Super User

Hi,

Please check the below picture and the attached pbix file.

Orders count: =
CALCULATE ( COUNTROWS ( Sales ), Dates[Year] = MAX ( Dates[Year] ) )

Orders count prev 5 years avg: =
VAR selectedyear =
MAX ( Dates[Year] )
VAR previous5years = selectedyear - 5
VAR newdatetable =
CALCULATETABLE (
VALUES ( Dates[Year] ),
FILTER (
ALL ( Dates ),
Dates[Year] < selectedyear
&& Dates[Year] >= previous5years
)
)
RETURN
AVERAGEX ( newdatetable, [Orders count:] )

If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.

Helper I

@Jihwan_Kim You're a genius! It worked so, thank you very much for your help.

As a bonus, please could you explain the DAX to me, for the 5yr average? I like to have a vague understanding of what is going on so I know for future.

Many thanks

James

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