Change Order Cost Impact Calculator
Calculate the full cost impact of a construction change order, including direct costs, overhead & profit markups, and bond/insurance premiums.
Formulas Used
1. Self-Performed Direct Cost
Direct Cost = Labor + Material + Equipment
2. Subcontractor Total
Sub Total = Subcontractor Cost × (1 + Sub Markup % / 100)
3. Total Direct Cost
Total Direct = Direct Cost + Sub Total
4. After Overhead
After Overhead = Total Direct × (1 + Overhead % / 100)
5. After Profit
Before Bond = After Overhead × (1 + Profit % / 100)
6. Total Change Order Cost
Total CO = Before Bond × (1 + Bond & Insurance % / 100)
7. Effective Markup
Effective Markup % = ((Total CO − Total Direct) / Total Direct) × 100