FREE WORKFLOW TOOL / VERSION 1.0

Where did the job cost change?

Compare one completed batch on the same scope and cost basis. Every calculation is visible, and your inputs stay in this browser.

1. Confirm the comparison

Estimated good quantityActual good quantityCurrency

Drawing revision, included work, batch quantity and cost-rate basis match.

2. Enter total batch costs

Use 0 for a confirmed zero. Leave no cost bucket implicit. Do not add a labor charge already included in your machine rate.

COST BUCKET	ESTIMATED	ACTUAL
Programming & setup	Programming & setup estimated	Programming & setup actual
Run / conversion	Run / conversion estimated	Run / conversion actual
Material & scrap	Material & scrap estimated	Material & scrap actual
Outside processes	Outside processes estimated	Outside processes actual
Tooling / other	Tooling / other estimated	Tooling / other actual

Next quote: one assumption to investigate — optional

Import or download the fixed-format CSV

Columns: category, estimated, actual, currency. Five categories: setup, run, material, outside, tooling. The file is read locally; it is not uploaded.

Choose a filled CSV

No values are sent to the server.

The formula and its limits

Batch cost = programming/setup + run/conversion + material/scrap + outside processes + tooling/other. Variance = actual − estimated. Percentage change = variance ÷ estimated × 100; when the estimate is zero the percentage is undefined. Unit cost = matched batch cost ÷ good quantity.

Calculations use integer cents for totals. Both sides must use the same currency, rate conventions, included costs and quantity. Do not infer causality from a variance, compare unmatched revisions or treat absent actuals as zero. This tool does not predict machining times, generate manufacturing instructions, calculate tax or validate accounting policy.

The fictional example is deliberately simple and is not an industry benchmark. Sources for the workflow: our job-cost review guide and your own accepted job records. Downloaded files remain under your control.

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