ROI (Return on Investment)

23 Oct 2025
By Bill Robertson
Glossary
ROI shows how profitable your investment is. If it’s positive — you’re earning. If it’s negative — you’re losing money.

Example:  Spent $1000, earned $1500 → ROI = ((1500 − 1000) / 1000) × 100% = 50%

Why it’s useful:

  • Helps evaluate if a campaign was worth the cost
  • Makes it easier to choose where to invest next
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