In the monitoring report filed for the twelve-month period ending March thirty-first of each year, the utility shall provide additional schedules indicating the following revenue calculations:
The utility also shall provide a schedule that specifies changes in its tariff rates required to achieve any indicated change in revenue.
The proposed rate changes, filed by the utility, shall conform as nearly as is practicable with the revenue allocation principles contained in the most recent rate order.
S.C. Code § 58-5-440