What campaign ROI tells you
Campaign ROI compares the value a QR campaign produces against what it cost. It is the number that decides whether a campaign deserves more budget, a redesign, or retirement.ROI hides timing. A campaign can look weak in week one and strong by week six, so judge it over its full life.
How to compute campaign ROI
ROI = revenue minus cost, divided by cost, multiplied by 100. A result of 0% means the campaign broke even. A result of 100% means it returned twice what it cost.Illustrative example numbers, not real-world data: revenue of 5,000 currency units minus a cost of 2,000 gives 3,000, and 3,000 / 2,000 x 100 = 150% ROI. If revenue falls to 2,000 with the same cost, ROI becomes 0% and the campaign only broke even.
How to collect the data
Track revenue that came through the QR destination, subtract the full campaign cost including design, print, placement, and tracking, and use the same date range for both sides.Keep the raw counts, not just the final percentage. Raw counts let you recompute the metric if you later fix the definition, and they make it possible to spot a denominator problem, such as a week where exposures were estimated instead of counted. Store the counts in one place with the date range, the placements included, and the name of the person who pulled them. That small discipline turns a spreadsheet into an audit trail.
Reading the result
Never judge campaign ROI as a single number. Break it down by placement, offer, and campaign month. A campaign that looks average overall may be strong in one segment and weak in another, and the fix is completely different in each case. Compare the same placement against its own past, and compare different placements only when their audiences and contexts are genuinely similar. A short trend over four or more comparable periods is worth far more than a single snapshot, because it separates a real shift from weekly noise.Also check the relationship between campaign ROI and the metrics around it. If scans rise while conversions fall, the new scanners may be less interested visitors, or the landing page may have changed. If cost rises while campaign ROI stays flat, you are paying more for the same outcome. Metrics make sense in groups, not in isolation, and the habit of reading two or three together prevents most misreadings.