I am working on an assignment and it has a question about Numerical Reconciliation I have been all through the text and can't find it anywhere. Is there anyone out there who can tell me what this is so I can finish this assignment?

I have the same question about "Numerical Reconciliation"
It is said in a required "Prepare a numerical reconciliation of the difference between operating income.."
I think it is about variable costing and absorpting costing