How to Calculate ROI (Return on Investment) for Small Business

SL
SmoothLedger Editorial TeamVerified financial & SaaS content
Published November 8, 20259 min read
Guide Summary & Key Takeaways

Should you buy that new equipment? Should you run that Facebook ad? Calculating ROI removes the guesswork from business decisions.

ROI is the universal metric for "Is this worth it?" It measures the efficiency of an investment and helps you make data-driven business decisions instead of gut-feel gambles.

The Simple Formula

((Net Profit from Investment - Cost of Investment) / Cost of Investment) x 100

Example: You spend $1,000 on Facebook ads. Those ads generate $1,500 in sales with $200 in product costs.
Net Profit: $1,500 - $200 = $1,300.
ROI: (($1,300 - $1,000) / $1,000) × 100 = 30% ROI.

What ROI Numbers Mean

  • Positive ROI: You made money. The higher, the better.
  • 0% ROI: You broke even. You got your money back but made no profit.
  • Negative ROI: You lost money. Time to pivot or cut the expense.

Common ROI Calculations for Small Business

  • Marketing ROI: Did the ad campaign generate more revenue than it cost?
  • Equipment ROI: Will the new machine increase output enough to pay for itself?
  • Employee ROI: Does the new hire generate more revenue than their salary + benefits?
  • Software ROI: Does the tool save enough time to justify the subscription?

Use our ROI tools to run quick calculations before making any major business investment.

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