| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Science Fiction & Fantasy > Science Fiction > Military > Space Marine | 351 | 6,130 | £1,005 | |
95% | 30% | 60% | 87% | ~ 5,000 |
| Kindle eBooks > Children's eBooks > Animals > Fish & Marine Life > Marine Life | 15,614 | 138,524 | £88 | |
95% | 0% | 5% | 30% | ~ 2,000 |
| Kindle eBooks > Children's eBooks > Animals > Fish & Marine Life > Fish | 12,663 | 381,091 | £124 | |
95% | 0% | 10% | 43% | ~ 1,000 |
| Kindle eBooks > Science & Math > Biological Sciences > Biology > Marine Biology | 1,568 | 510,521 | £167 | |
95% | 0% | 15% | 33% | ~ 1,000 |
| Kindle eBooks > Children's eBooks > Animals > Fish & Marine Life | 11,958 | 1,845,828 | £104 | |
90% | 5% | 15% | 40% | ~ 3,000 |
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