This is easy I'm sure, but I can't work it out - have tried several ways, but here's the one that is easiest to explain:
Let's say that my company starts the year with 0 employees. At the end it has 202. I recruited 346 new people during the year. I need to work out the percentage that leave so I can predict for next year.
So, that means I lost 144 (346-202). The average employee number over the year is 101 ([202-0]/2). So leave percentage is 144/101 = 143% but that's ridiculous...