score share
Score share

You can get to this screen from my chance button or options menu.

Scores are computed as the percentage of the sum of all scores. Hence, share of each topic (viz., Physics, Chemistry and Mathematics) is 33.3% only.
Below is the table depicting how scores are graded. 

Score Range Result
less than 10% Poor
10% - 20% Average
20% - 30% Good
30% and above Excellent