Progress POC calculation - Period or YTD

Hi Experts,

We are using a RA Method which uses POC from progress analysis to calculate revenue.

The Progress analysis is EV Basis = 1 Cost Plan (active project , overall values)

                                        POC Weighting = 7 Cost Plan (active project, annual values)

The POC formula = Planned Cost for the period / Overall planned cost is what I understand.

My question is regarding the POC formula if we run the CNE1 in the middle of the month what data will system consider ?

a) POC = Planned Cost for the period / Overall Planned cost

or

b) POC= Planned cost for the period till date / Overall Planned cost

Thanks,

Krishna