Value should be 0 for its first month
My requirement is, for a material if the first month (for the impact key figure ) is having any value it should shown as 0 , as below :
Required output is :
Here for M100 July is the first month having value so it should be 0
M200 April is the first month having value so it should be 0
How to achieve this in Webi. Please let me the possible ways.