For any organizations of any size, it is required to take staff turnover into account. This is to calculate the cost of doing business. Basically, it is a calculation of wastage whereby you take the number of employees who leave the company, to the total number of employees in one company.
For example,
Company Y: Employed 1,000 persons in January 2010. By January 2011, 300 had left. This gave a high turnover of