I agree with your statistics and want to add extra context that these statistics are about (US?) _startups_. There are a lot of companies being started that don't pursue huge growth. I believe they are sometimes referred to as "mom and pop" shops in the US. In europe they're just called businesses or SME's.

I don't have any numbers and probably more than 50% do fail, but not 90%. Plenty of bakers, restaurants, accountants and small shops succeed in making money for the owners, employment for the staff and value for the customers.