Only 0.03% of people who make a living from writing. According to the Bureau of Labor and Statistics, in 2019 there were 48,544 employed in-house writers and authors for companies, while about 82,656 writers were self-employed.

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It is estimated that the chances of an author getting their work published is between 1% – 2%.

Over 95% of manuscripts sent to publishers/agents are below the standard required to publish.

Many submissions contain key mistakes in the use of spelling/grammar, or have general issues with the content itself.

Less than 5% of manuscripts are of a high quality, however the majority of these are still not possible to publish immediately due to contrasting from what the publisher/agent is looking for.

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https://wordsrated.com/author-statistics/#:~:text=It%20is%20estimated%20that%20the,issues%20with%20the%20content%20itself.