Spend & Cost Management

Cost Modelling

Cost modelling is the practice of building a structured estimate of what a product or service should cost by breaking it into its component cost elements.

A cost model decomposes a price into materials, labour, machine time, overhead, logistics and margin, using assumptions about quantities, rates and yields. It gives buyers an independent view of what an item ought to cost, which strengthens negotiation, exposes where a quote looks inflated, and helps compare suppliers on a like-for-like basis rather than on headline price alone.

Cost models range from quick estimates to detailed engineering-based builds, and their accuracy depends on the quality of the input data. Kept up to date with current material and labour rates, a model becomes a reusable tool for should-cost analysis, target costing and understanding how movements in key cost drivers will flow through to price.

Key points

  • Breaks a price into materials, labour, overhead, logistics and margin.
  • Gives an independent, evidence-based view for negotiation.
  • Underpins should-cost analysis and target costing.

Frequently asked questions

What is cost modelling?
Cost modelling is building a structured estimate of what a product or service should cost by breaking it into component elements such as materials, labour, overhead and margin.
Why is cost modelling useful in procurement?
It gives buyers an independent view of what an item should cost, strengthening negotiation, revealing inflated quotes and enabling like-for-like comparison between suppliers.

Explore related across the knowledge graph

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AI-first procurement software. Live marketplace. Human services.

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Operating model · diagram

  1. 01

    AI-first software

    AI-first procurement software for long-tail spend

  2. 02

    Live marketplace

    A live B2B marketplace

  3. 03

    Human services

    Human sourcing and support

  4. 04

    Optional add-on

    Fulfilment support for merchants