| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Children's Books > Education & Reference > Math > Arithmetic | 441 | 5,477 | $17,550 | |
100% | 5% | 30% | 0% | ~ 3,000 |
| Books > Science & Math > Mathematics > Popular & Elementary > Arithmetic | 687 | 69,650 | $1,830 | |
90% | 0% | 45% | 0% | ~ 4,000 |
| Books > Teens > Education & Reference > Mathematics > Arithmetic | 5,682 | 1,973,251 | $335 | |
95% | 10% | 60% | 10% | ~ 212 |
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