Quick question, does anyone know the steps to credit something that was bided on a new change order? Foe example if you bided a (10) 2x4 lay in fixtures and a new revision wants to remove 5 2x4 lay in fixtures and add 5 down lights instead, how would you go about crediting back for this fixtures that were removed and charge for the new downlight labor and material. Hopefully it makes sense. Am trying to learn the estimating process and I notice this comes up quite a bit with the company that I work for right now. Please comment or send me an email if you can help.