FREE CALCULATOR
Change Order Impact Calculator for Commercial Contractors
Know what a change order should cost. See the contract impact before you price. Check if your proposed change order is underpriced.
Contract Context
Change Inputs
Results
Enter costs and proposed price to see impact.
Commercial Contractor Example
HVAC change order on a $185K mechanical contract
Proposed price is $2,500 below recommended value.
What this costs you: You leave $2,500 on the table. Actual markup drops to 9.4% instead of your target 25%. Over 10 similar change orders on this job, that's $25,000 lost.
Why This Matters
Change orders get priced too casually.
Scope changes happen fast. The client wants a number. You estimate the work and quote from experience. But small pricing misses compound quickly. A $2,500 underprice on five change orders becomes $12,500 in lost profit.
Contractors need to show contract impact, not just change cost. When you see what a change order does to total contract value—and whether it meets your markup standard—you price with confidence instead of guessing.
ONE CHANGE VS EVERY CHANGE
This calculator checks one change order.
Quoteloc keeps every change order priced right, approved, and locked into a controlled contract record. Your team quotes from the right cost basis every time. Contract value stays visible. Revisions don't drift.
Stop underpricing change orders and losing margin across your jobs.
WITHOUT QUOTELOC
Each estimator prices changes differently
WITH QUOTELOC
Every change order priced, approved, and locked
7-day free trial. No credit card required.