We are using a new electrical estimating software program that has a calculation that I do not understand. Simply put the summary page exist of (1) material cost total (2) material markup total (3) labor cost total (4) labor markup total (5) overhead total in percentage (6) job profit in percentage. The overhead total is a percent of items 1 - 4. The job profit total is a percent of items 1 - 5. The bid price is items 1 - 5 plus item 6. What I do not understand is why there is a job profit calculation on top of and in addition to a material markup and labor markup. It would seem as though profit margins had already been considered in the markup of material and labor. Would you know what the purpose of or reason for a job profit calculation is? Regards, Gary