I am looking at a spreadsheet with the total construction cost for the project.  I already shaved off HVAC, Electrical, Plumbing, and other equipment costs from the total (including audiovisual systems, security systems, fire alarm, and air sampling smoke detection system).  However, I noticed that the spreadsheet also accounts for other costs, such as general conditions, mobilization, insurancem P&P bonds, subguard, etc.  Should I remove those costs from the total construction cost?