10 pts Wallace Manufacturing has implemented several programs to improve its productivity. They have asked you to evaluate the firm's productivity by comparing 2019's performance with 2018's. The following data is available fround the final numbers to two decimal places: 2018 2019 Output 137.000 units 169.000 units Labor hours 11,350 hours 12,550 hours Utility input 10.700 dollars 10,650 dollars Capital input 80,700 dollars 87,300 dollars Note: You can click here (Exam-blank-Excel.xlsx) to access a blank spreadsheet for your calculation. Please enter your final results in the following questions. a) The firm's labor hour productivity in 2018 is units/hours, b) The percentage change in labor hour productivity from 2018 to 2019 is c) If the cost of labor was $22 per hour in 2018 and was $25 per hour in 2019, the total productivity of the firm in 2018 is units/dollar, and the total productivity of the firm in 2019 is units/doliar