Method · October 2026 · 5 min
Seven types of savings hidden in your invoices
For each type: an example signal, the decision that follows, and who makes it. Easiest first.

The seven types
The examples below are illustrative. The first assessment, on your own data, shows which ones apply to you, and for how much.
Micro, macro, decision
The first four types are micro: they show up in what you pay. Dependence and some stockouts are macro: they come from what happens beyond your walls (shortage alerts, tight raw material supply, production origin). Argos cross-references the two and translates each signal into euros, then into a decision: quantified options, one person who makes the call, and follow-up through to realized savings.
Metrics tracked every month
- Spend for the month and the year, by category, site, and supplier.
- Share of purchases made under contract, and the consumption rate of each contract.
- Identified overspend, estimated savings in the briefs, realized savings measured in the invoices.
- Average time from a signal to a decision.
- Supplier dependence index by category.
Two of these metrics show whether the product keeps its promise: realized savings, and the time from a signal to a decision. If those two are good, the rest follows.