How do I calculate employee turnover?

Divide the number of employees for the calendar period by the average number of jobs and multiply by 100. That equals the percentage. For example: 300 employees divided by 100 jobs equals 3 times 100 equals 300%. This is the opposite of "whostolemypr"'s answer.

it depends on what you want the turnover for... month, year, etc. i would suppose you could just take the number of employees and divide the amount of time and that will give you a percentage.
You take the average number of positions (jobs) in your company for a given period of time. Divide that by the number of employee's employed for any duration during that said period of time. Move the decimal to the right two spaces and subtract that number from 100. That would be your "turn over" percentage.
Just a guess. I don't know, these things just come to me.
The number of employees (full staff) you have at any one time is 100%. (Full)
The number of employees you have who were with you at the beginning of the reporting period (last week, last month, last year) and are no longer with you at this time and have been replaced by new hires is your turnover. (Replaced)
R/F x 100 = turnover percentage.
Divide the number of employees who have left the company by the average number of employees during the year.

If you lose 5 people, and the average staffing is 100, the you have 5% turnover.
from they marginal earnings and his spending bill