Runs the free profit check-up for an Etsy shop, a Shopify store or an Amazon seller. Returns the grade (a word such as Watch, with level 1 Healthy to 5 Losing money), what one order (Amazon: one unit) and the month keep after fees, ads and costs, the loss total, and the top 3 losses, each with its fix and what it's worth a month at the seller's numbers if orders hold. Call it when a seller asks where their money goes, whether their shop is healthy, or what to fix first. Set platform (etsy is the default) and pass that platform's Quiz v1 answers; each field says what it takes. Bands and "not-sure" are fine: every default used is listed (isDefault), so ask for the real number. There may be no grade yet: with too few answers, level is null, word is "Not enough answers yet", and grade.missing lists the answers to get a grade. Ask for them and call again; losses found still show. Amazon: fulfillment, storage and returns dollars are estimates from third-party rate cards (estimate: true, in estimatedLeakTotal, apart from leakTotal); a typed fbaFee from Fee Preview makes that fee the seller's own. Money is US dollars; shares are fractions (0.1 is 10%). Every result carries the dated rates with sources. Free, no sign-in. Takes numbers only; nothing is stored.