FREE TOOLS FOR SMALL CONTRACTORS

Know your numbers.
Before the next yes.

A scope change can add revenue and still eat into profit. See the whole job, check your price and keep the arithmetic out of the way.

No sign-up · Runs in your browser · Export your results

THE CHANGE / A WORKED EXAMPLE
Whole-job gross margin32.50%

After a $6,000 change with $4,000 added cost

Approved revenue$54,000

Forecast cost before change$36,500

Gross profit after change$19,500

THE WORKBENCH

One decision.
The right calculation.

Choose a task. Each tool explains its inputs, shows its method and lets you take the result with you.

FIELD NOTES

The math behind the number.

Short, worked explanations for the details that change a result.

BUILT TO BE CHECKED

Your job data stays in this tab.

The tools calculate on your device. There is no account, upload, hidden saving or third-party analytics in this version. Exact-cent calculations and visible formulas make every result easier to check. Read the methodology.