What is a healthy VO percentage?

Often ≤ 5% on well-defined scopes; higher on design-build or fast-track projects.

Construction

Variation Order Impact Calculator

Express the cumulative value of variation orders as a percentage of the original contract value.

Calculator

VO Impact = VO Value / Contract Value × 100

Cumulative VO value

Original contract value

Enter values to compute.

Interpretation Guide

≤ 5%Typical.
5 – 15%Elevated — review change control.
> 15%Material — likely scope or design issue.

Example

$300k VOs on $4M contract → 7.5% (elevated).

Real-world use cases

Owner reporting
Contract administration
Scope-control reviews

Common mistakes

Excluding approved but unsigned VOs

Professional tips

Track approved + pending separately

FAQ

Frequently asked questions

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