Get Paid for Extra Work | Change Order Calculator

Capture the cost and scope of added work before it is forgotten.

Extra Work Approval OS is a downloadable offline browser tool for service contractors, installers and field project teams. Create structured change requests, calculate proposed prices using editable markup and print a document for customer review.

WHAT YOU RECEIVE

- START_HERE.html: working offline change request and price calculator

- QUICK_START_GUIDE.pdf: setup and pricing guide

- SAMPLE_RECORDS.json: fictional project example

- COST_EXAMPLE.csv: worked cost example compatible with Excel

- LICENSE.txt: license for one individual or one business location

FEATURES

- Labor hours x hourly cost, materials, equipment and subcontract input

- Editable markup percentage with live proposed price calculation

- Project, client, scope, notes, extra days and reference fields

- Draft, submitted, approved, declined and cancelled tracking

- Approved / unbilled overview for the selected currency

- Printable PDF-ready change notice with blank signature fields

- CSV export and JSON backup/restore

HOW IT WORKS

Download ZIP > extract > open START_HERE.html in a desktop browser > save a change request > Print/PDF for client review > track status after obtaining actual approval separately.

IMPORTANT

This is an HTML browser app, NOT an Excel workbook. Typed acknowledgment names and application status are organizational notes, NOT legally binding electronic signatures. It does not calculate tax, produce a legal contract, synchronize data or send notices. Approval and contract formalities must follow your local legal requirements. Keep JSON backups; records are in local browser storage.

Digital download only; no physical product. Demo data is fictional.

PRODUCT HIGHLIGHTS:

Cost calculator | Printed approval notice | Offline | No e-signatures | No tax engine