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Calcimator

Change Order Impact Calculator

Calculate the full cost impact of a construction change order including markup, schedule delay costs, and new contract value.

Inputs

days
%

Results

New Contract Value

$2,093,750

Total Impact

$96,750

Markup Amount$18,750
Schedule Impact Cost$3,000
Change as % of Contract4.7%
How to Use This Calculator
  1. Enter the current contract value before this change order.
  2. Enter the direct cost of the change in dollars (positive for additions, negative for deductions).
  3. Enter the schedule impact in calendar days the change adds to the project.
  4. Set the overhead and profit rate as a percentage to apply markup to the change amount.
  5. Read the new contract value, markup amount, schedule impact cost, and total change order impact.
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