What is the turnover rate. I worked for a company where when I joined they had just let go something like half or more of the engineers. Few in engineering exc

What is the turnover rate. I worked for a company where when I joined they had just let go something like half or more of the engineers. Few in engineering except for management had been there more than a year. Apparently the company liked to treat employees like contractors and just wholesale let people go as the company’s finances dictated all the while advertising to customers and potential hires as a stable and growing place to work or to partner with.