Deferred Revenue Reporting

Does anyone know of reporting for Deferred Revenue in RMCS. I can see data for revenue recognized to date for a contract and billings to date, but we need to add a step to take the difference between Billing less Revenue Recognized in order to arrive at the Deferred Revenue Balance for each contract.

Does anyone know of a standard report that provides the deferred revenue balance per contract without needing to manually intervene and calculate?

Thanks,

Jon