Calculator comparison

CalculatorBest used forPrimary outputImportant limitation
TikTok Shop ProfitCoupons, creator activity and order economicsProfit per order and affordable ad spendFee and creator assumptions must be updated
Amazon FBA FeesSKU screening with fulfillment and PPCContribution after FBA-related inputsSize tier and account fees vary
Shopify MarginDirect-store first-order economicsMargin after payment, shipping and CACDoes not estimate lifetime value
Break-even ACoSSetting an advertising ceilingBreak-even and target ACoSAttribution quality still matters
ROAS ReconciliationAuditing a campaign reportContribution after adsRequires complete cost inputs

How to use a result

  1. Replace every default input with a number from your own records.
  2. Save a base scenario and a downside scenario.
  3. Read the linked guide to understand limitations.
  4. After launch, reconcile the estimate with settled orders and payouts.