Order Costing: Material Prices Stayed the Same, but the Margin Disappeared

The order shipped on time. Purchasing paid the expected material price. Sales charged the agreed amount.

The monthly review still shows less margin than the quote promised. Nobody changed the price; several small production decisions changed the cost.

Order costing becomes useful when a variance can be traced to quantities, hours and specific events. A single total labelled “over budget” gives the next quotation little help.

Separate price from consumption

Material price variance and material usage variance answer different questions. If the price is unchanged but more material is consumed, purchasing did not create that difference.

Likewise, distinguish an incorrect labour rate from extra recorded hours. For a decision about profitability, know which costs are incremental and which are allocated overhead.

Keep the quotation's assumptions visible: lot size, setup time, yield, subcontracting, packing and freight.

A worked example: €510 of lost contribution

Take a hypothetical order for 1,000 units sold for €10,000. Planned direct costs are:

• Material: €4,000.
• Processing: 100 hours at an assumed €30 per hour, or €3,000.
• Freight: €200.

Planned contribution before other costs is €10,000 − €7,200 = €2,800.

Actual material use costs €4,240 at unchanged prices. Six additional chargeable hours cost €180. Expedited freight costs €290 instead of €200.

Actual direct cost is €4,240 + €3,180 + €290 = €7,710. Contribution falls to €2,290, a difference of €510.

This is a teaching example of direct-cost contribution, not a full profit-and-loss statement. A full costing model may also include energy, depreciation and other overhead.

Trace each difference to an event

The extra €240 of material could come from startup scrap, rework or a changed specification. Investigate the recorded quantity and cause before assigning responsibility.

The six hours might reflect additional changeovers or a routing estimate that was never updated. The existing article on changeovers shows how sequence changes affect resource time.

The €90 freight difference might be the consequence of a late material arrival. It belongs in the story even though it appears outside the shop floor.

Improve the next quote with the finding

A recurring short-order setup should enter the quotation model. A one-off breakdown should remain identifiable as an exception.

Compare similar orders by product, batch size and route. Averages across unrelated orders can hide the reason one group repeatedly misses its expected contribution.

Read cost alongside delivery and quality. As the guide to manufacturing KPIs explains, improving one measure can worsen another.

How this connects to factory.online

factory.online includes standard and actual costing and comparison between them. In a demo, follow one completed order and ask which material quantities, confirmations and rates support the difference. Confirm how your overhead rules and freight are represented.

Book a demo with a quotation and the completed order's records. The goal is an explanation you can use before pricing the next order.