Reports on percentage of employees who completed a particular task

Summary:

Hi friendly experts,

The performance process flow we are using is

1) Set Goals

2) Self evaluation (employee)

3) Manager evaluation

4) Employee final comments

5) Manager final comments.

My client wants to see a report that shows percentage of documents that have completed different tasks.

E.g. %age of employees that have completed Self evaluation

%age of managers who've rated employees.

%age of employees who've provided final comments etc.

Could you please point me in the right direction for this otbi report?

Content (required):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):