If you run the numbers and get a final value of 100%, (or 1), that’s the breakeven point of your ROAS calculation.
Consider the example just above. If you generated only $15,000 in revenue, then your ROAS would be $15,000 / $15,000 or 100% (or 1).
In other words, you earned exactly as much as you spent.
If you earn less than $15,000, then you’re losing money. If you earn more than $15,000, then you have a positive return.
Keep in mind, that’s breakeven only in terms of ad costs. It doesn’t take into account other business expenses, such as the costs of goods sold, fixed costs, or general selling costs.