New staff performance
For skilled technicians who have performed in similar roles they will have a lead in time whilst they become familiar with their new surroundings and any specific requirements you may have as a business. This lead in time is generally short and you should expect your new hire to be performing within a couple of weeks. For less technical roles such as admin or customer service the lead in time can be longer especially if they have not been recruited from a competitor. However as these roles will deliver less to your bottom line and are less well paid their cost will be less.