Wrong answer in Quiz

Hi everybody,
I have completed the Assignment 4 - Star Rating in ViDA after submitting quiz, but result on question: “% of road rated 3-stars or better for vehicle occupants (smoothed stars)/pedestrian” … results shown wrong answers. You know my answer was 80% for 1, 2 and 5 star each in 3 road segments and 3 stars in remaining 7 segments (rows) in validated dataset. Anybody can suggest me?