For any metric, you can see the change in two different ways: Absolute Change or % Change.
For example, with No. Of Tickets, if you select Absolute Change, it will show the difference in the actual amount of tickets. If you select % Change, it will show this same number as a %. See the example below.
With Absolute Change selected:
With % Change selected:
For metrics such as Sentiment, the same rule also follows.
With Absolute Change selected, it shows the amount of % points the Sentiment has changed by:
With % Change selected, it shows the same change as a %: