Advice how to structure rolling forecast formula with time element

Hey-

I am looking to build on a formula in my rolling forecast. I am having trouble laying out the necessary steps.

Percentage Seasonality: Each period in a year (12) has an assigned rate. When I roll my forecast, I need the percentage to take the current forecast month rate / the sum of the remaining forecast periods' rates.

Any insight would be helpful. Thanks!

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Misbah

@ChristinePowell

Step 1 : Create SYS Time Module where you have Current Month stored

Step 2: In your Calculation Module - Have three line items created

L1 = Percentage Rate[LOOKUP: SYS Time.Current Month]

L2 = TIMESUM(Percentage Rate,12) - Note: This Line item will not have Time as a dimension. Also it is assuming that you need 12 months rolling all the time

L3 = L1/L2

Hope that helps!

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