How to create these PA reports

[KhushbooJenifer]

Create a report showing Close codes(Successful, successful with issues and Unsuccessful) data in Percentage for change table.
1. Changes showing close codes data.
2. Changes caused by the incident

3. Changes caused by other changes

[Slava Savitsky]

What is the exact problem with those reports? What have you already tried and where do you get stuck?