please help me with part B. Part A is attached in the Excel sheet below

4. Posey Ceramics makes ceramic vases for a chain of department stores. The output and cost figures of their two production centers for last month are shown here. Labor costs $8 an hour, and materials are $3 a pound. a. Calculate the (i) labor productivity (in hrs) for each week, (ii) material productivity (in lbs) for each week, and (iii) multifactor productivity for each week. b. Workers are scheduled to receive a 10% pay raise. Will that lead to an increase or a decrease of productivity? In the case that productivity increases, how much can the output decrease in order to balance the increase in productivity? And in the case that productivity decreases, how much should the output increase to bring productivity back to its original value? 1 3000 Week Units of output No. of workers Hours per week per worker Material (lbs) 4 44 300 2 5000 5 42 580 3 7000 6 48 1100 4 6000 5 56 1000 2 4 1 3000 Week Units of output No. Of workers Hours per week per worker Materials (lbs) 2 5000 5 42 580 3 7000 6 48 1100 6000 5 56 44 300 1000 A. 1) Labor productivity 1 2 3 4. 17.0455 23.8095 24.3056 21.4286 units per labor hour 10 8.62069 6.36364 6 1.01351 1.13122 0.96154 0.88235 Units per dollar 11) Material productivity III) Multifactor Productivity