Lake Charles Seafood makes 500 wooden packing boxes for fresh seafood per day, working in two 10-hour shifts. Due to increased demand, plant managers have decided to operate three 8-hour shifts instead. The plant is now able to produce 650 boxes per day.
a) Calculate the company's productivity before the change in work rules and after the change.
b) What is the percentage increase in productivity?
c) If production is increased to 700 boxes per day, what is the new productivity?