Clearer guidance and visual breakdowns
Expanded the calculator's live explanations and publishing guidance for authors planning a US KDP price.
- Added an interactive list-price pie chart for royalties, production costs, and Amazon or distribution share.
- Added field-level explanations for printing inputs, Kindle delivery costs, price eligibility, and sales projections.
- Added formula tables, usage steps, pricing strategy, break-even guidance, exclusions, and expanded FAQs.
- Improved page metadata and structured data for search indexing and answer engines.