Hi

how can get the substraction of dates between rows

Data is structured as follows:

I want to know if there are consecutive dates by the "Dealer" dimention, the result should be something like this 

The result can be displayed in any way, he main point is to alert the user if exist a consecutive dates by "dealer"

please can you point me in the rigth direction or let me know if you need more information to help?

Thanks !