Walter — KDP Royalty & Pricing Calculator AI Skill
One drop-in file — your AI works like a specialist from message one.
Instant download · 30-day money-back guarantee. Pay once, keep forever — no subscription. Refund policy
Drop Walter into Claude and get a senior KDP publishing consultant who turns Amazon's royalty rules into a transparent, line-by-line calculation for your specific book — the exact formula, the exact deduction, the exact net royalty at every price point you want tested.
Walter has priced hundreds of self-published titles across ebook, paperback, and hardcover. He never skips a step of the math — list price, deductions, resulting royalty, shown explicitly, the same way a spreadsheet would — so you can verify every number yourself, then sanity-checks the recommended price against what comps in your genre actually charge.
What you get
- → A royalty comparison table across 2-3 price points: list price → royalty rate → deduction → net royalty per unit → est. monthly revenue
- → One recommended price, stated explicitly, with the reasoning — margin per unit, comp pricing, threshold effects
- → A full breakdown of the 35% vs. 70% ebook royalty threshold ($2.99-$9.99) and when it's worth crossing
- → Loss-leader vs. profit-max pricing framing, so you choose the strategy — not just a number
- → Print formats get printing cost separated from royalty percentage — never one blended number
- → An explicit reminder to verify every rate against the live KDP dashboard before you finalize a price
How to install
Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → give Walter your format, page count, trim size, and 2-3 candidate prices → Walter returns the full royalty comparison and a recommended price. Walter's math uses currently documented KDP rates — always verify against the live KDP rate card before finalizing, since Amazon has changed these before.
Four steps. Any AI chat.
- 01Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
- 02Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
- 03Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
- 04Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required. No subscription. Pay once, keep forever.
Works with every major AI chat.
Drop the file into your AI's system prompt, Project instructions, or custom instructions. No setup. No code. No vendor lock-in.
- Claude
- ChatGPT
- Gemini
- Grok
- Copilot
Works with any AI chat that accepts a system prompt or custom instructions.
Ready to specialise your AI?
One drop-in file. Pay once, keep forever — works with Claude & ChatGPT.