# Update a project's cost estimate

Revise a project's saved cost estimate or estimated labor hours after the scope has been reviewed. Keeping cost categories separate makes later estimated-versus-recorded comparisons easier to interpret.

Help me update a project's estimates. Ask for the project and revised labor hours or material, labor, installation, delivery, and other cost estimates. Show current and proposed values, keep omitted fields unchanged, and prepare the update for my approval.

[Try this prompt](https://app.millbase.ca/try-prompt?prompt=Help+me+update+a+project%27s+estimates.+Ask+for+the+project+and+revised+labor+hours+or+material%2C+labor%2C+installation%2C+delivery%2C+and+other+cost+estimates.+Show+current+and+proposed+values%2C+keep+omitted+fields+unchanged%2C+and+prepare+the+update+for+my+approval.)

## When to use it

A confirmed scope change or estimate correction needs to be reflected in an existing job.

## What you need

The project number or name, approved revised estimates for the fields being changed, and permission to edit projects.

## What you’ll get

- Current and proposed values for each requested estimate field.

- A project-update proposal that leaves unspecified estimates unchanged.

## How to use it

Open the prompt in Millbase, sign up or sign in if needed, then review the editable draft before sending.

Distinguish labor hours from labor cost and check the workspace currency. Updating an estimate changes planned values, not the time or material transactions already recorded.