Business decision tool
Contract Change Order Leakage Calculator
Measure approved and unapproved scope-change value that has not reached customer billing.
Inputs and results stay in this browser. Currency symbols are illustrative; use any consistent currency.
Understand Contract Change Order Leakage
One idea, three depths
Choose how deeply to explain Contract Change Order Leakage
Contract Change Order Leakage: Measure approved and unapproved scope-change value that has not reached customer billing.
Age 5Explain it to a 5-year-oldStart with a picture
Imagine using Contract Change Order Leakage to answer this question: measure approved and unapproved scope-change value that has not reached customer billing? Enter Change work performed, Change orders approved, Approved value billed, and 1 other input; the calculator shows Unbilled and unapproved leakage. Try changing one number and watch what happens to Unbilled and unapproved leakage. The answer tells you Unbilled and unapproved leakage.
Age 15Explain it to a 15-year-oldConnect it to the formula
Separate documentation delay from rejected scope so the team can pursue recoverable value without overstating revenue. The rule is Leakage = performed change value − approved and billed value. Its input values are Change work performed, Change orders approved, Approved value billed, Expected recovery of unapproved value (%), and the main result is Unbilled and unapproved leakage. Try changing one number and watch what happens to Unbilled and unapproved leakage.
CollegeExplain it at college levelState the model precisely
This tool models one operating decision from explicitly supplied company assumptions. The implemented relation is Leakage = performed change value − approved and billed value, evaluated from Change work performed, Change orders approved, Approved value billed, Expected recovery of unapproved value (%) to produce Unbilled and unapproved leakage. Separate documentation delay from rejected scope so the team can pursue recoverable value without overstating revenue. The model omits unentered taxes, cash timing, legal constraints and market uncertainty. Compare the output with company records and a downside scenario before committing resources.
The decision this tool supports
Measure approved and unapproved scope-change value that has not reached customer billing.
Why the business model works
Separate documentation delay from rejected scope so the team can pursue recoverable value without overstating revenue.
Inputs and operating assumptions
This model uses Change work performed, Change orders approved, Approved value billed, Expected recovery of unapproved value. Keep currencies, accounting treatment and time periods consistent with one another.
The formula
Leakage = performed change value − approved and billed value
What the calculator produces
The primary output is Unbilled and unapproved leakage; it also exposes Approval gap, Expected recoverable unapproved value. Change one assumption at a time so the comparison remains explainable.
Before using the result in a decision
This compact model cannot capture every tax, accounting, legal, market or operational condition. Compare the output with current company records, cash timing and the downside scenario before committing resources.
Supporting sourcesAcademic referencesPrimary standards, textbooks and complete citations
Standards, reading and academic references
Use the calculator as the worked interaction, then consult the primary standards and academic textbooks listed below. MW SysArc links to the original sources; the explanation on this page is original and does not reproduce them.
Introduction to Business 2e
Read the free OpenStax business textbookCite this book
- APA 7
- Gitman, L. J., McDaniel, C., Shah, A., Reece, M., Koffel, L., Talsma, B., & Hyatt, J. C. (2026). Introduction to business 2e. OpenStax. https://openstax.org/books/introduction-business-2e/pages/1-introduction
- MLA 9
- Gitman, Lawrence J., et al. Introduction to Business 2e. OpenStax, 2026, https://openstax.org/books/introduction-business-2e/pages/1-introduction.
- Chicago author-date
- Gitman, Lawrence J., Carl McDaniel, Amit Shah, Monique Reece, Linda Koffel, Bethann Talsma, and James C. Hyatt. 2026. Introduction to Business 2e. Houston, TX: OpenStax. https://openstax.org/books/introduction-business-2e/pages/1-introduction.
OpenStax entries are free to read online. Follow the licence shown on each linked source before redistributing or adapting its content.
Reuse the page responsiblyCite this pageAPA, MLA, Chicago, Harvard, BibTeX and RIS
These formats cite this calculator page itself. They are separate from the academic references above, which support the mathematical method and terminology.
APA 7
MW SysArc. (2026, July 21). Contract Change Order Leakage Calculator. MW SysArc Tools. https://business.mwsysarc.com/contract-change-order-leakage
MLA 9
MW SysArc. “Contract Change Order Leakage Calculator.” MW SysArc Tools, 21 July 2026, https://business.mwsysarc.com/contract-change-order-leakage. Accessed 30 Aug. 2026.
Chicago 17
MW SysArc. “Contract Change Order Leakage Calculator.” MW SysArc Tools. Published July 21, 2026. Accessed August 30, 2026. https://business.mwsysarc.com/contract-change-order-leakage.
Harvard
MW SysArc (2026) ‘Contract Change Order Leakage Calculator’, MW SysArc Tools. Published 21 July 2026. Available at: https://business.mwsysarc.com/contract-change-order-leakage (Accessed: 30 August 2026).
BibTeX and RIS records
BibTeX
@misc{mwsysarc_contract_change_order_leakage_2026,
author = {{MW SysArc}},
title = {Contract Change Order Leakage Calculator},
howpublished = {MW SysArc Tools},
year = {2026},
url = {https://business.mwsysarc.com/contract-change-order-leakage},
note = {Published July 21, 2026; accessed August 30, 2026}
}RIS
TY - ELEC
AU - MW SysArc
TI - Contract Change Order Leakage Calculator
T2 - MW SysArc Tools
PY - 2026
DA - 2026-07-21
Y2 - 2026-08-30
UR - https://business.mwsysarc.com/contract-change-order-leakage
N1 - Published July 21, 2026
ER -Clear answers
Frequently asked questions
What does the Contract Change Order Leakage do?
Measure approved and unapproved scope-change value that has not reached customer billing.
How does the Contract Change Order Leakage work?
The calculator applies Leakage = performed change value − approved and billed value. Separate documentation delay from rejected scope so the team can pursue recoverable value without overstating revenue.
What can I learn from the Contract Change Order Leakage?
It connects company inputs to a transparent business result. Change one value at a time to compare operating scenarios.
Does MW SysArc receive or store what I enter?
No. The calculation runs locally in your browser. MW SysArc does not receive or store your calculation inputs.
How should I use the result?
Use the result as a practical reference. Review the inputs, assumptions and stated limitations before relying on it.
Last reviewed . Calculations tested .