The FTE occupancy number you use must be consistent with the FTE occupancy numbers used in all your other LEED credit submittals, including: 

WEp1: Water Use Reduction
WEc2: Innovative Wastewater Technologies
SSc4.2: Alternative Transportation—Bicycle Storage and Changing Rooms
SSc4.3: Alternative Transportation—Low-Emitting and Fuel Efficient Vehicles

SSc4.4: Alternative Transportation—Parking Capacity.