PREVIOUS() for line items in a module not involving time dimension
I am working on a module in which have two related line items (L1 & L2)& a dimension "Period." For Period A is L2=0, Period B L2 = Period A L1 and so on. I am trying to figure out a calculation for the Non-time series module. Example of module given below:
Period A/Period B/Period C/Period D/Period E
what is the best way to do it?