What is Return on Investment (ROI)?
A financial metric that measures the profitability of an investment by comparing the gain relative to its cost.
Detailed Explanation
Return on Investment is calculated as (Net Gain from Investment minus Cost of Investment) divided by Cost of Investment, expressed as a percentage. It provides a straightforward way to evaluate whether an investment — in equipment, software, training, marketing, or process improvement — is generating adequate returns. ROI can be measured in financial terms (dollar returns) or broader terms (time saved, quality improved, risk reduced). When comparing multiple investment options, ROI provides a common language for prioritisation. However, ROI should not be the sole decision criterion — it does not account for timeframe, risk, strategic alignment, or intangible benefits.
Why It Matters
Every business has limited resources to invest. ROI analysis ensures that resources are directed toward initiatives that generate the greatest return. It provides the evidence needed to justify expenditure, measure the success of past investments, and build the business case for future ones.
Example
A trades business invests $15,000 in a job management platform. Over 12 months, the system saves 10 hours per week in admin time (valued at $40/hour = $20,800), reduces invoicing errors worth $5,000, and improves on-time job completion. The ROI is ($25,800 - $15,000) / $15,000 = 72% in the first year alone.
Related Terms
A measurable value that demonstrates how effectively an organisation or individual is achieving key business objectives.
The difference between a budgeted (planned) amount and the actual amount spent or earned, indicating whether performance is on track.
A metric that measures past performance and outcomes, confirming whether goals have been achieved after the fact.
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