The Knowledge Points in Accelerate pertain to progress toward completion and an estimated amount of time it takes to complete a task.  If you hover over the knowledge points, you can see the time associated.  1 knowledge point roughly equals 1 minute. The knowledge points fold in to the overall Daily Goal which is the amount of Knowledge Points a user needs per day to reach their next milestone.

There are about 682 knowledge points in consultative selling; if a user has obtained 54 knowledge points, it means they are about 8% of the way through the course. [54/682 * 100 = 8%]