PJM requires that the sum of the daily Network Service Peak Load (NSPL) values reported to eRPM daily by the Electric Distribution Company (EDC) equate to the zonal target set by PJM for each zone. This sum will vary day to day due to customer attrition which necessitates the EDCs to calculate and apply a daily zonal scaling factor prior to reporting NSPL values to PJM. There is a similar market requirement for daily Peak Load Contribution (PLC) values reported by the EDC daily to eRPM to equate to a set zonal target, however, the eRPM system calculates and applies the PLC daily zonal scaling factor by zone to achieve balance. This inconsistency can lead to potential confusion in the market.