<img width="1015" alt="Screen Shot 2019-09-26 at 2 54 48 PM" src="https://user-images.githubusercontent.com/13773586/65717087-842bd400-e06e-11e9-9e21-d1c243fb0650.png"> The numerator is mistakenly the number of tasks in the last stage of a job, while the denominator is total number of tasks across all stages
The numerator is mistakenly the number of tasks in the last stage of a job, while the denominator is total number of tasks across all stages