How would EBS allocation line "C" transfert to Fusion Allocation?

Summary:

We have EBS formulas that use the B/C to create their own stats. Is there a way to do the same thing in Fusion Allocation

If not, what would be a good workaround

Content (required):

Exemple: Looping through GA and GR on the ratio of 2115/1111

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Code Snippet (add any code snippets that support your topic, if applicable):