Return on Investment (ROI) and Value on Investment (VOI)

Return on investment (ROI) is the net financial return a digital health platform generates relative to its total cost — licensing, hardware deployment, implementation, and ongoing staffing — expressed as a ratio or percentage. Value on investment (VOI) is a broader companion measure that captures returns a pure financial ROI calculation cannot: quality-of-care improvements, patient and clinician satisfaction, health equity impact, and organizational reputation, none of which convert cleanly into a dollar figure but all of which matter to whether a digital health investment should be considered a success. Together they answer two different, complementary questions: ROI asks "did this pay for itself financially?"; VOI asks "was this worth doing, accounting for everything that matters?"

Why it matters

A digital health investment that shows a poor or negative ROI in its first year is not automatically a failure, and one that shows a strong ROI is not automatically a success, if the ROI calculation ignores material value the program generates outside pure cost offset — this is precisely the gap VOI exists to close, and organizations that rely on ROI alone risk defunding programmes with genuine value that simply have not yet, or will never, show up as direct financial return. At the same time, VOI is more subjective and harder to benchmark than ROI, which makes it vulnerable to being used to justify continued investment in a program that is not actually delivering measurable value of any kind; the discipline of reporting both together, with VOI's components made as concrete and measurable as possible, is what keeps this framework honest rather than becoming a way to avoid financial accountability. Long-term digital health investment decisions — particularly in value-based care, where quality and equity outcomes are directly tied to payment — increasingly require both figures side by side.

How it's calculated

ROI = (financial benefit − total investment cost) / total investment cost × 100

Financial benefit sources: cost per episode of care reduction, bed-day
reduction (converted to a cost figure), avoided ED visits (see ED
diversion rate), reduced readmission penalties, and any direct revenue.

Total investment cost: platform licensing, hardware/device deployment
and maintenance, implementation and integration cost, ongoing clinical
and technical staffing.

VOI is not a single formula, but a structured, multi-dimensional
scorecard combining ROI with defined, tracked non-financial value
domains, for example:
  Clinical quality  (e.g. biometric improvement rate, readmission rate)
  Patient experience (e.g. patient net promoter score, SUS score)
  Equity           (e.g. digital access rate, digital literacy rate)
  Workforce         (e.g. physician burnout rate)
Each domain is reported on its own terms, not artificially converted
to a dollar figure, alongside the financial ROI figure.

Worked example

A remote monitoring program costs $600,000 in its first year (platform licensing, device deployment, and additional clinical staffing) and generates $750,000 in quantifiable financial benefit (bed-day reduction and avoided readmission penalties). ROI is ($750,000 − $600,000) / $600,000 × 100 = 25%. Alongside this figure, the organization's VOI scorecard reports a 5-point improvement in patient net promoter score, a biometric stabilization rate of 68% for enrolled hypertension patients, and a measured reduction in enrolled clinicians' after-hours documentation time. None of these three additional findings changes the 25% ROI figure, but together they build a materially stronger case for continued investment than the ROI figure alone would support, particularly to stakeholders (clinical leadership, patient advocacy groups) who weight quality and equity outcomes as highly as financial return.

Data sources and caveats

ROI's financial benefit side draws on the same cost and outcome data used elsewhere in this book — cost per episode of care, bed-day reduction, ED diversion rate — converted into a dollar figure using the organization's own cost-accounting methodology, and should use conservative, defensible assumptions rather than optimistic best-case ones, since an ROI figure built on aggressive assumptions will not survive scrutiny from a skeptical finance team. VOI's non-financial domains should each use an already-validated metric from elsewhere in this book (biometric stabilization rate, patient net promoter score, digital access rate, physician burnout rate) rather than an informally invented substitute, so that the VOI scorecard itself remains auditable and comparable over time rather than becoming a loosely defined narrative.

Pitfalls

Reporting ROI alone for a program with material non-financial value: this risks defunding a program with genuine clinical, equity, or workforce value simply because that value does not show up in a pure financial calculation; pair ROI with a structured VOI scorecard.
Treating VOI as a way to avoid financial accountability: VOI should use concrete, previously validated metrics for each non-financial domain, not vague or unmeasured claims of value, or it becomes a way to justify continued spending without genuine evidence.
Using optimistic or unvalidated assumptions in the ROI cost-avoidance calculation: an ROI figure built on aggressive assumptions about avoided cost will not withstand scrutiny and can damage the credibility of future investment cases.
Comparing ROI figures across programmes with very different cost structures without adjustment: a program with high upfront capital cost and long payback period should not be compared on a single-year ROI figure against one with low upfront cost and fast payback without accounting for the different time horizons involved.

Sources

Healthcare Financial Management Association (HFMA), guidance on ROI and value measurement frameworks for healthcare technology investment
HIMSS, value and ROI measurement frameworks for digital health and health IT investment
Peer-reviewed and industry literature on digital health value-based care return on investment, for example analyses published by Rock Health and similar digital health research organizations

See also: cost per episode of care and bed-day reduction, two of the most common direct inputs to the financial ROI calculation.