First, 3.1% is kind of big. Second, there's legal definition of Mass Layoff as per WARN act. > at least 50 employees are laid off during a 30-day period, if t

First, 3.1% is kind of big. Second, there's legal definition of Mass Layoff as per WARN act. > at least 50 employees are laid off during a 30-day period, if the laid-off employees made up at least one third of the workforce > 500 employees are laid off during a 30-day period, no matter how large the workforce; > an entire work site is closed down and at least 50 employees are laid off during a 30-day period.