Windchill Quality Audit : Generate Audit Summary

I was trying to create an Audit and when I tried to create an audit summary, I noticed that while filling the "Audit Details" there is some column to be filled, Can anyone please help me with the Audit Summary since:

• I am not able to understand on what basis the summary is created?
• What each column means and what are the factors? 
• An example would be great to understand.

I am attaching screen-shots the "Audit Details" sequences which I have tried and the PDF of Audit Summary.