How does account health score calculate and the time stamps? like is it updated by the day or weekly ?

for example how many points are deducted by a negative feedback, or a chargeback or A-zclaim ? but lets say you won thus claims, does your account health still hurt?

Ive read by every 200 orders sent perfectly you are rewarded 4 additional points is this weekly? or hour based? is there any metrics I may be missing that I may need to pay attention to , all metrics are either on below or above target , would I need 100% on everything for my score to continuously improve?