Worked change-order example
The $2,740 change that became $3,151.
A complete change order does more than add a price. This constructed bathroom example separates the original promise, the exact change, omitted-work credit, materials, labor, markup, schedule effect, payment trigger, and revised project total before anyone authorizes the work.
No changed work until scope, price, time, and payment are one written decision.
A price without changed scope cannot be checked. Changed scope without a schedule effect is incomplete. A revised total without an objective payment trigger can create a dispute. The signed change should say what leaves, what enters, what it costs, when it is due, and how the project record changes.
The arithmetic is only one part of the decision. The same approval also records a three-working-day extension and a milestone-based payment trigger.
Start with words, not dollars
The homeowner changes from one vanity to two wall-mounted sinks.
One 48-inch vanity
- One cabinet and top
- One sink and faucet
- Existing plumbing locations retained
- Base vanity installation included
Two wall-mounted sinks
- Delete vanity cabinet and top
- Add two named sinks and faucets
- Split supply and drain lines
- Add wall blocking and patching limits
This is a constructed educational example. All amounts, hours, rates, markup, schedule effects, and payment terms are illustrative—not observed bids, price benchmarks, or recommended contract terms.
Show every addition and subtraction
The credit belongs in the calculation before markup.
$2,740 direct-cost delta + $411 markup
$72,000 original total + approved change
The non-price half
The change also buys three working days.
The example adds three working days after materials are available and the changed work is authorized. The revised target date should be stated—not left for someone to reconstruct later from a text thread.
Before either signature
Eight checks that keep one change contained.
Reason
Why is the change needed or wanted, and who requested it?
Original scope
What exact signed work is being removed, retained, or affected?
Changed scope
What products, quantities, labor, interfaces, cleanup, and records are now included?
Credits
What original work or allowance is no longer owed, and where is the credit shown?
Cost formula
What supports materials, labor hours/rates, other charges, and the markup base?
Schedule
How many working days change, and what is the revised milestone or completion date?
Payment trigger
What observable event makes each changed-work payment due?
Approval
Do both parties receive the same dated, signed version before work or ordering begins?
Portable approval record
Keep the decision usable after it leaves HomeScope.
The four-page PDF captures the original scope, proposed scope delta, supporting cost lines, credits, markup formula, schedule effect, payment milestones, approval status, and revised project totals. It also includes a change log so several changes do not quietly erase the original budget.
Update the whole record
Check the complete change before approving it.
Keep changed scope, credits, markup, schedule effect, and the revised project total in one calculation.