what is the formula of calculate the goal's nb_conversions value

General questions
1
  1. what is the formula of calculate the goal’s nb_conversions value ? I only see many methods, please tell me the excatly formula.
  2. Since I also count the access log and calcuate the hit rate, and find that the hit rate result is different with matomo 's goal’s nb_conversions. May i know goal’s nb_conversions mean the number of click, right? It is calculate number of times of visitor click, right?
3

Hi @kwan
Can you share an example on the unconsistency in a goal conversion?