The details of weekly output and input for a fabrication process are as follows output is 600 units with a standard selling price of $95 per unit for the week, total labor costs are 10 workers at 40 hours for the week paid $15 per hour. The material cost is $25 per unit and weekly overhead is charged at the rate of 1.25 times the labor costs. What is the mulitifactor productivity for the week.