To determine the space-by-space lighting power allowance for the project:

List all spaces in the building by space type designated in ASHRAE table 9.6.1.b. 
Determine the gross lighted floor area of each type of space in square feet.
From ASHRAE table 9.6.1, determine the allowable LPD for each space type. 
Multiply the area of each space by the allowable LPD. This equals the total allowed wattage for each space.
Add up all wattage for the different space types to find the lighting power allowance for the project.