2. A company has introduced new productivity-enhancing training in 2017 and is comparing the effect on productivity in 2018 compared to 2015 and 2018. Using partial productivity measures for each input, identify how successful or unsuccessful the training has been. Note whether movements in each measure are in the same direction over time. 2015 2018 Sales $200,000 $220,000 Labor 30,000 40,000 Raw materials 35,000 45,000 Energy 5,000 6,000 Capital 50,000 50,000 Other 2,000- 3.000