How to measure procurement savings credibly

Commerce Street Procurement · Measurement guide · Updated October 5, 2026

Define the baseline before reporting a result

A savings claim is only useful when its comparison is clear. Document what was previously purchased, the volume and service level, and the period covered. Compare equivalent requirements wherever possible.

Separate opportunity, avoidance, and realized savings

An identified opportunity is a possible change. Cost avoidance can represent a prevented increase. Realized savings reflect a verified reduction against the agreed baseline. Report them separately rather than combining them into one number.

Account for the cost of change

Include implementation, transition, training, and recurring charges where relevant. A lower quoted price may not produce a lower overall cost. State exclusions explicitly.

Keep a record that can be reviewed

Retain the evidence, calculation, time period, and reviewer. Explain changes in volume or scope that affect the comparison. Review the result with the team responsible for financial reporting.

Measure value as well as price

GAO’s 2021 procurement performance report recommends balancing cost measures with delivery timeliness, quality, and end-user satisfaction, and involving users in developing metrics. Its study concerns selected federal agencies and companies; it does not establish expected savings for your organization.

A worked example: make the comparison equivalent

Illustrative example only: 100 identical items previously cost $50 each. A new quote is $46 each, with $150 in additional delivery charges. The comparable difference is $5,000 minus $4,750, or $250—not the $400 difference in item prices alone. If quantity, specifications, or service change, explain how the baseline was adjusted. This is not a Commerce Street savings claim.

Assign someone to review the result

Before reporting savings, ask a finance or procurement reviewer to confirm the baseline, quantities, extra costs, and evidence. Keep quoted opportunities separate from completed purchases. A simple review record can include the source invoice, replacement quote, calculation, reporting period, and any exclusions.

Use a consistent reporting rhythm

Choose a review schedule your team can maintain. Explain which transactions are included and which are missing. Track whether the benefit lasted over time rather than relying on one favorable order. The Harvard Government Performance Lab data guide offers practical context for regular procurement-metric discussions.

General educational guidance. Consider your organization’s circumstances and applicable requirements. Source references do not imply endorsement of Commerce Street.