Deductions for absence from duty must be proportional; concerted absences can permit up to eight days' pay deduction. Deductions for absence from duty allow proportional wage reductions corresponding to the period an employee is absent from the place(s) required for work during the wage-period; where ten or more employees acting in concert absent themselves without due notice and without reasonable cause, deduction may include up to eight days' wages in lieu of notice, and a person present but refusing work due to a stay-in strike or other unreasonable cause is deemed absent.