Hello @Shivraj93
Firstly you need to have appropriate Category data available. For example for QoQ you need to have a date(time) variable that has Quarter format.
Secondly you need to create Aggregated Measure for QoQ attrition. The easiest way to achieve this is by hovering over Attrition > Click right-mouse-button > New calculation... > Type = Difference from previous period, Date = Quarter.
Best regards,
Petri