How does the calculator determine the number of creatives?+
The calculator uses your desired growth percentage to determine how many winning ads you need. Every 3 winning ads can drive a 25% increase in profitable ad spend, but each subsequent set of 3 winning ads is 15% less effective due to diminishing returns. It counts winners until cumulative growth meets your target, then divides by your win rate to get total creatives to test.
How are diminishing returns modeled?+
Each winning ad contributes growth (base: 25% per 3 winners = ~8.33% per winner), but with compounding decay. The decay rate is 15% per set of 3 winners, applied per individual winner. So winner 1 gives ~8.33%, winner 2 gives ~7.88%, winner 3 gives ~7.46%, winner 4 gives ~7.06%, and so on. This reflects reality — audience overlap, creative fatigue, and rising CPMs eat into each additional winner's impact.
What is the efficiency score?+
The efficiency score reflects how effectively additional winning ads scale your ad spend. High efficiency (above 80%) means you can still grow profitably with manageable creative volume. Lower scores mean you're approaching diminishing returns — each new winner contributes less. Below 50% means you should focus on improving win rate through better research and hooks before trying to brute-force growth with volume.
How is the testing budget calculated?+
Each creative gets a testing budget of 2x your average CPA. This gives every ad a fair chance to prove itself with enough data for a statistically meaningful read. Total testing budget = number of creatives x 2 x CPA. If you're killing ads after less than 2x CPA of spend, you're making decisions on noise, not signal.
How can I reduce the creatives needed?+
Improve your win rate. Going from 4% to 8% cuts your creative volume in half. Better win rates come from better research — understanding your customer's language, pain points, and awareness level before writing a single hook. Use structured creative briefs, test hooks independently from visuals, and map ads to awareness stages.
What if I set a very high desired growth?+
Diminishing returns make very high growth targets exponentially expensive in creative volume. Going from 25% to 50% growth doesn't just double your creative needs — it can triple or quadruple them because each additional winner contributes less. If the calculator shows you need 200+ creatives, consider whether improving your win rate or optimizing your existing funnel would be a better use of resources.
