The reference energy use intensity shall be determined utilizing Table 612.1. The EUIr value from Table 612.1 shall be adjusted based on the monthly weighted average percentage of occupied floor area during the 12-month compliance period as documented in accordance with Section 612.3.2. For buildings with multiple use or occupancy designations in Table 612.1, the EUIr shall be adjusted based on the weighted area average of the use or occupancy.