Bear Lake Seafood makes 500 boxes of seafood per day, working in two 10-hour shifts. Due to increased demand, plant manager have decided to operate three 8-hour shifts instead. The company now produces 650 boxes of seafood per day. The company employs 4 workers for each shift, and pays the workers $10 per hour. The utility cost for the company is $5 per working hour. Calculate the company's multifactor productivity before the change in work rules and after the change.