Register now or log in to join your professional community.
using Script logic will be the best way. But if we want to go with simple dimension logic...then
>[[NETAR]]-(][NETAR]],[[TIME]].PrevMember)
(no square brackets for Prevmember as it is MDX command, not dimension/dimension member)
can be used to get the difference between this month and last month.
Previous month returns previous member in the level that contains a specific member.