Sales you need per $1 of ad spend just to not lose money. Lower is easier. = 1 ÷ margin.
Most you can pay to land one order and still break even. It equals your profit per order.
What you actually pocket per order once ads hit your target ROAS. This is the real goal, not just break-even.
Profit as a % of price after cost + fees + shipping. High margin = a low, easy ROAS bar.
| Product | Margin | Break-even ROAS | Break-even CPA (= profit/order) |
Profit @ 3× ROAS | Cost | Price |
|---|