Site scores give a numerical value to a site's performance to allow for benchmarking.
How are the scores calculated?
One point for completed, half a point for late and zero points for incomplete. The totals are then split over the number of tasks to produce a final number out of 10.
In future the formula will be widened to take into account the nature of a task.
If one site is consistently scoring lower than other sites they're either not completing their tasks on time - or - there's an issue with how their tasks are scheduled. Either way Scores should give valuable insight into managing your multi-site operations.