Return on investment (ROI)
Return on investment is a profitability measure that compares the net gain from an activity to its cost, usually expressed as a percentage by dividing profit by the amount invested and multiplying by 100.
The formula is simple: subtract cost from what you earned, divide by cost, multiply by 100. Spend 1,000 dollars on a campaign that returns 4,000 in profit and your ROI is 300 percent. The arithmetic is the easy part. The hard part is deciding what counts as return and over what window, and that is where most ROI claims quietly fall apart.
Content ROI is the clearest example. The cost is easy to total, but the return arrives late and spread out. A post that closes a deal six months from now, a profile that convinces a buyer before they ever fill in a form, an audience that lowers acquisition cost across every channel. Judge a content program on a 30-day window and it looks like a loss. The return is real; it just does not respect a quarterly reporting cycle.
Treat ROI as a lens, not a verdict. It rewards whatever you can measure quickly and punishes anything with a long payback, which is why so many companies overspend on trackable ads and underinvest in the compounding assets. When you report ROI, be honest about the time horizon and about what you left out of both sides of the equation.
Frequently asked questions
How do you calculate ROI?
Why is content marketing ROI hard to measure?
What is a good ROI?
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