{"uid":"cap_Yjll4Z-0AZX44sgvlYhtT","slug":"publishing-calc-print-book-royalty-calculator-0102c3b7","name":"Publishing Calc: Print Book Royalty Calculator","description":"Print book royalty per copy from list price, printing cost and royalty rate, plus break-even price and total.","url":"https://publishing-calc.x402tookit.com/print-royalty?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["listPrice","printCost","royaltyRate"],"properties":{"model":{"type":"string","description":"list (default): rate x list - printing cost; net: rate x (list - printing cost)"},"copies":{"type":"number","description":"Copies sold, for a total (default 1)"},"listPrice":{"type":"number","description":"Retail list price"},"printCost":{"type":"number","description":"Printing cost per copy (from your printer's calculator)"},"royaltyRate":{"type":"number","description":"Royalty percent, for example 60"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"copies":{"type":["null","number"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"listPrice":{"type":["null","number"]},"modelUsed":{"type":["null","string"]},"printCost":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"totalRoyalty":{"type":["null","number"]},"royaltyPerCopy":{"type":["null","number"]},"breakEvenListPrice":{"type":["null","number"]},"royaltyRatePercent":{"type":["null","number"]},"royaltyPerCopyExact":{"type":["null","number"]},"authorSharePercentOfList":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eVqKLijIb0sqhgcyGXpg4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates print book royalty per copy from list price, printing cost, and royalty rate, plus break-even list price and optional total royalty for a given number of copies.","exampleAgentPrompt":"My paperback has a list price of $18.99, printing costs $4.85 per copy, and my royalty rate is 60% — can you calculate my royalty per copy, my break-even price, and how much I'd make in total if I sell 300 copies using the list model?","exampleUseCases":[{"title":"Self-publisher pricing a new paperback","prompt":"I'm launching a paperback with a $16.99 list price, $4.20 printing cost, and a 60% royalty rate — what's my royalty per copy and what's the break-even list price I should be aware of?"},{"title":"Comparing net vs list royalty models","prompt":"Can you calculate my royalty per copy under both the list and net models? My book lists at $22.00, printing costs $5.50, and my royalty rate is 70%."},{"title":"Projecting total earnings for a print run","prompt":"If I sell 500 copies of my print book at a $14.99 list price with $3.80 printing cost and a 60% royalty rate, what are my total royalties and royalty per copy?"}],"resultDescription":"Returns royalty per copy (exact and rounded), total royalty for the specified number of copies, break-even list price, author share as a percent of list price, the royalty model used, and a summary. May include disclaimer and degraded flag if inputs are unusual.","failureModes":["Missing required queryParams (listPrice, printCost, royaltyRate) returns an error","Royalty rate entered as a decimal (e.g. 0.60) instead of percent (60) may yield unexpected results","List price lower than printing cost will produce a negative or zero royalty per copy","Invalid model value (not 'list' or 'net') may fall back to default or return an error","Non-numeric values for numeric fields will cause a validation failure"],"whenToPreferThis":"Use this endpoint when you need a precise, formula-based royalty calculation for a print book — especially when you have a specific list price, per-copy printing cost, and royalty rate in hand and want both per-copy and total royalty figures along with break-even analysis. Prefer this over manual calculation or generic spreadsheet tools when building a publishing workflow agent or helping authors evaluate pricing decisions quickly.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T00:30:42.470Z","isFirstParty":false,"canonicalSlug":"publishing-calc-print-book-royalty-calculator-0102c3b7"}