Powerpivot how to make continuous negative value formulas aotu show words

[Oscarr]

Hi all

Powerpivot how to make a formulas,
if 1 customer continuous negative value for 2 months, then the "red" words will automatically show in the list.
if the customer did not continuous negative value for 2 months, then nothing will show up in the list.

 

[Oscarr]

hi all

anyone can help for this powerpivot??

thanks