Benchcraft / Field notebooksMethod & source ↓

Notebook 04   /   Supply & purchasing

Usable lot comparison

Compare supplier prices per usable piece after inspected rejection rates.

Prepared for Materials purchaser

01 / Working inputs

Set the scope

The example is ready to edit. Use the same job and period for every figure.

02 / Live working sheet

Result

A cost per 100 usable
€123.89
B cost per 100 usable
€120.08
A rejection rate
5.83%

Owner’s next step Request an acceptance sample before using an estimated reject rate.

Calculations and exports run on this device.

03 / Calculation notes

How to read it

Accepted counts are actual or owner-approved estimates. Transport and settlement terms must be comparable.

Worked example
A cost per 100 usable · €123.89

04 / Original adaptation

Where it came from

A person reviews the output and handles exceptions before buying. Independent application for materials purchaser teams. The figures are editable examples created for this worksheet.

Greg Isenberg · 13 Businesses for the Age of AI ↗

JB Codex / Optional paid help

One workflow, reviewed by its owner

Map one repetitive job, agree its inputs and approval point, run an example and hand over a tested template. External systems are scoped separately. Your enquiry goes to JB Codex for review.

€149 one-time pilot after scope agreement

See the offer ↗