# Circular Reference - IRR  Hi All,

I've encountered Circular Reference in a calculation that involves IRR formula, for which I think is an illogical treatment of Anaplan. Please could you give some advice:

The calculation is as following:

Relation 1: Operating Results (ORt) = Operating Income (OIt) x Adjustment Factor (AFt)

Relation 2: Adjustment Factor (AFt) depends on Rate of Return of previous period (IRR t-1).

IF IRRt-1 < 15% THEN AFt = 50%

IF 15% <= IRRt-1 < 25% THEN AFt = 50% - (50%-12.5%)* (IRRt-1 - 15%)/(25%-15%)

IF IRRt-1 >= 25% THEN AFt = 12.5%

Relation 3: Rate of Return (IRRt) = IRR (Operating Results (ORt))

As such, Operating Results of, say 2025, is calculated with Adjustment Factor of 2025, which is calculated with IRR of 2024 (which in turns based on Operating Results 2024)

This is completely normal relation and it is demonstrated well with Excel.

But Anaplan is giving a Circular Reference each time I tried to link the Relation 3 (after building the Relation 1 & 2)

I am looking forward for any advice or experience sharing related to the matter.

Thanks & Cheers,

Minh

Tagged:

•  use PREVIOUS() to avoid circular references (in most cases).

In your case you would probably have to do PREVIOUS(IRR)

•  Hi Nathan,