It is very interesting to find out how many days it takes since the first order date to get a specific amount of sales. To do that, it’s worth taking into account the running total calculation and a fixed LOD.
Let’s create our first calculation to find out the first order date for each customer.
After that, return the days since the first order date.
Now you need to drop the above measure into the view on Columns and sum of sales on Rows.
Select quick table calculation and choose running total.
After that, you would like to see this measure’s behavior across four regions by drop Region on the Color mark.
The rest is just formatting and you’re good to go!