=+k. Cost of repairing windstorm damage during construction . . . . . . . . 4,500 l. Cost of paving parking lot to be used by customers . . . . . . . . . . . . . 15,000 m. Cost of trees and shrubbery planted . . . . . . . . . . . . . . . . . . . . . . . . . 9,000 n. Cost of floodlights installed on parking lot . . . . . . . . . . . . . . . . . . . . 1,100