Make-Buy, Outsourcing & Network Design worked example

Supplier Network Cost at 50% share of suppliers actively managed: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop share of suppliers actively managed to 50%, then walk the calculation through step by step. Estimate the annual cost of managing a multi-supplier sourcing network beyond the price of the parts themselves.

The inputs for this scenario

  • Active suppliers in network: 40 suppliers (held at the documented default)
  • Annual cost to manage each supplier: 6,200 $/supplier-yr (held at the documented default)
  • Share of suppliers actively managed: 50 % (the input this scenario stresses; the baseline uses 70)
  • Network platform and audit fees: 35,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Network cost = suppliers x cost per supplier x managed share% + platform and audit fees.
  • Total supplier network cost works out to 159,000 $ at these inputs, and this is the headline figure for the scenario.
  • Supplier network cost per unit works out to 3,975 $ / piece at these inputs.
  • Variable supplier network cost works out to 124,000 $ at these inputs.
  • Fixed supplier network cost adder works out to 35,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where share of suppliers actively managed sits at 70% and the headline result is 208,600 $, this scenario comes in 23.78% below the baseline at 159,000 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to share of suppliers actively managed, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It applies one average management cost to every supplier, so it understates the disproportionate effort that a few high-risk or strategic suppliers actually consume.

Results at a glance

  • Total supplier network cost: 159,000 $ (headline result)
  • Supplier network cost per unit: 3,975 $ / piece
  • Variable supplier network cost: 124,000 $
  • Fixed supplier network cost adder: 35,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Supplier Network Cost calculator, set share of suppliers actively managed to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.