a. Ikponmwosanufacturing has implemented several programs to improve its productivity. They have asked you to evaluate the firm's productivity by comparing this year's performance with last year's The following data are available: Last Year This Year Output 11,600 units 13,800 units Inputs: Labour 12,400 14,200 Hours Energy $7,800 $8,400 Capital $82,000 $86,500 a. Has Ikponwen Manufacturing improved its productivity of each input during the past year? If so, by what percentage has this occurred for each item? (6 Marks) b. If last year the labour rate was $15 per hour, what was the multi-productivity at Ikponmwosanufacturing? (4 Marks)