Skip to main content
Showing results for 
Search instead for 
Did you mean: 

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

Resolver I
Resolver I

New and exit clients over multiple years

Hi all,

I am looking for help on a solution that I cannot seem to wrap my head around.


We have a table that has rows for clients (includes a client_id) for each year that they are involved in projects over the period 2020 until 2025. The clients that had a project in 2020 are 'baseline', let's say that there are 100. Then in 2021 new clients join (e.g. 20), some will leave (e.g. 5) and some will stay and this repeats itself until 2025. In 2020 my total is 100 and in 2021 the delta is 15. Now I'd like to have a visualisation that shows per year the number of new clients and the number of clients that left (so I leave out the clients that continue, only the specific delta matters).


How can I solve this in Power BI?


Thank you already for thinking with me!!




Resolver I
Resolver I

Thank you both for your answers! I will have a look at them both but I might need a while to fully understand it 😉

Not applicable

Try following 

  1. Create a new column called "Baseline" and set it to "Yes" for all rows that have a year of 2020 and "No" for all other years.

  2. Create a new column called "Delta" and set it to 1 for all new clients that appear in a year and -1 for all clients that leave in a year. Set it to 0 for all other rows.

  3. Create a new table that groups the data by year and calculates the sum of the "Delta" column for each year. This will give you the number of new clients and the number of clients that left for each year.

  4. Use a visualization chart .
Frequent Visitor

Richard - 
Check out this pattern from the folks over at  Perhaps this will meet your needs?
New and returning customers – DAX Patterns

Helpful resources

July 2024 Power BI Update

Power BI Monthly Update - July 2024

Check out the July 2024 Power BI update to learn about new features.


Fabric Community Update - June 2024

Get the latest Fabric updates from Build 2024, key Skills Challenge voucher deadlines, top blogs, forum posts, and product ideas.

Top Solution Authors