Head to Insights - Managers - Feedback Overview

The most recent rating panel pulls the most recent rating for each user in the company.  The number in the middle of each box has the number of people with that exact rating.  The small percentage on the top right of each box is the percentage of people found according to the filter.  For example, if there are 24 people in the company, a box with 6 people in it represents 25% of the company.  

Job Results and Values contribution progress can be filtered in different time frames by selecting the cog gear in the top right of each dashboard.  You will be able to see who has moved from tier to tier based on how you configured feedback.