A manager checked production records and found that a worker produced 252 units while working 60 hours. In the previous week, the same worker produced 175 units while working 50 hours. a. Compute Current period productivity and Previous period productivity. (Round your answers to 2 decimal places.) Current period productivity Previous period productivity Units / hour Units / hour b. Did the worker's productivity increase, decrease, or remain the same? (Round your intermediate calculations and final answer to 2 decimal places.) Worker's productivity by %