After investigation of a water leak on the 4th floor of Diercks Hall it was discovered that there is not an actual leak in the roof, instead there is a condensation issue on the structural steel that is holding up the screen wall on the roof. After investigating several different options, the Owner has asked for pricing to drill holes in each of the 27 structural support columns and inject spray-foam insulation. In order to determine the correct type and amount of insulation, as well as to insure the feasibility of the system, you will need to have the solution designed and inspected by a Professional Engineer. You have contacted your engineering firm on the project and they have quoted you a flat fee of $2,000 for this work. They have already made the determination of the type of insulation and have told you they specify an R-20 spray foam insulation. You contact your insulation subcontractor on the project and ask them for a quote to install the insulation. After reviewing the drawings they tell you that the material will be $370 per column, and in total it should take one of their workers approximately 4 hours to complete the work. Their hourly rate is $80 for the worker and according to their contract the allowable markup is 15% for overhead and 7.5% for profit. But looking at their bid form they sent over the company is excluding the drilling and patching of the hole in the columns. You speak to your superintendent and he indicated that he thinks in would take one of his workers approximately 2 hours to drill all of the holes and another 4 hours to patch them all after the insulation is complete. He estimates the total cost (before profit and overhead) for this work to be $600. You review your contract with the Owner and your overhead rate is at 7% and your profit is set at 2.3%. Taking this all into consideration, what is the total cost of this change order