Should Cost Analysis

Definition

Should Cost Analysis is a cost modeling method that estimates what a product, component, or service ought to cost based on its material content, labor requirements, manufacturing steps, overhead assumptions, and supplier economics, rather than relying only on quoted price or historical spend.

What is Should Cost Analysis?

Should Cost Analysis starts with the economic structure of the item being bought. Procurement or cost engineering teams break the requirement into cost drivers such as raw materials, conversion labor, machine time, tooling, packaging, logistics, scrap, yield loss, and supplier margin to estimate a defensible target cost.

In practice, the analysis combines technical specifications, bill of materials detail, process assumptions, production volume, wage rates, and commodity indices. The output is not the same as the supplier’s actual cost sheet. It is an informed estimate used to test quotations, support negotiations, compare supply options, and identify which cost elements merit challenge or redesign.

The method is used most often in direct materials, capital equipment, engineered services, and categories where the buyer can trace price back to physical or process inputs. It is especially useful when there are few suppliers, limited benchmark prices, or volatile commodity content.

Key Components of Should Cost Analysis

A robust model normally includes direct material, direct labor, variable manufacturing overhead, fixed overhead allocation, logistics, duties, yield loss, and profit. The model may also include tooling amortization, quality costs, energy consumption, or packaging where those factors materially affect conversion cost.

The correct level of detail depends on the category. A stamped metal part requires different drivers from a software implementation or a freight lane. The model must therefore reflect how the supplier actually makes or delivers the requirement, not a generic cost template.

How to Calculate a Should Cost

The calculation usually begins with the physical or operational inputs. For a manufactured item, a simple structure is material quantity multiplied by material rate, plus labor hours multiplied by labor rate, plus machine or process cost, plus applicable overhead, plus logistics and supplier margin. For services, the model may be based on role mix, effort hours, utilization assumptions, travel, and profit.

The value of the model comes from the logic behind the assumptions. A should cost built on the wrong production method, unrealistic yield, or incorrect wage geography may look precise but still lead to poor negotiation decisions.

Should Cost Analysis in Procurement

Procurement teams use Should Cost Analysis to challenge quotes, prepare negotiation positions, identify savings levers, and separate unavoidable cost inflation from margin expansion. It also helps buyers evaluate design changes, make or buy decisions, and supplier relocation scenarios by showing how each variable changes total cost.

The analysis is most effective when combined with category knowledge and supplier intelligence. A model may show what the cost should look like, but commercial terms, capacity constraints, and market power still shape the final negotiated price.

Limitations of Should Cost Analysis

Should Cost Analysis is only as strong as the technical inputs and market assumptions behind it. If the buyer lacks process knowledge, volume realism, or current commodity data, the model may understate or overstate economically achievable cost.

It also does not replace supplier relationship management. A supplier may be pricing in low volume complexity, engineering support, payment term risk, or capacity reservation that is not obvious from a high level model. Those factors need to be tested through dialogue rather than ignored.

Frequently Asked Questions about Should Cost Analysis

What is the difference between Should Cost Analysis and price benchmarking?

Price benchmarking compares a quote with historical prices, peer purchases, or market references. Should Cost Analysis works from the underlying cost structure of the item or service itself. That makes it more useful when there is little comparable buying history or when market prices are distorted by inflation, shortages, or supplier concentration. In negotiation, benchmarking tells you what others paid, while should costing tells you why a price may or may not be defensible.

When is Should Cost Analysis most useful?

It is most useful in categories where the price can be linked to identifiable technical or operational drivers. Examples include machined parts, castings, packaging, electronics, logistics, and complex services with clear labor content. It is also valuable when a buyer suspects margin expansion, receives a large increase request, or needs a data based position before a strategic negotiation. The method is less powerful when requirements are vague or when the supplier’s delivery model is opaque.

Can Should Cost Analysis be used for services as well as materials?

Yes. For services, the model normally focuses on effort, skill mix, utilization, location, travel, subcontracting, overhead, and profit rather than bill of material content. A consulting engagement, call center contract, or maintenance agreement can all be analyzed this way if the buyer understands the work profile. The logic remains the same: estimate the economic build up of the service and compare it with the quoted commercial outcome.

Does a should cost represent the final price a company should expect to pay?

Not always. A should cost is a negotiation and decision support estimate, not a guaranteed transaction price. Final price can still be higher or lower depending on volume commitments, tooling ownership, payment terms, lead time, risk transfer, demand volatility, and supplier strategy. The model is most useful when it frames an informed commercial discussion rather than being treated as an inflexible number detached from market reality.