星级评分系统如何运作？

Question

What I want is to know how star ratings works. I don't get the logic of it.

Example:

5 star - 300 people  
4 star - 45 people  
3 star - 100 people  
2 star - 99 people  
1 star - 10 people  

Total of 554 people

I want to convert these number of votes to percentage and compute all of it to get its average

5 star - 40% (300 people)  
4 star - 10% (45 people)  
3 star - 21% (100 people)  
2 star - 20 % (99 people)  
1 star - 9% (10 people)

a total of 100%

It's just a random percentage. It's not the correct answer.

How can I achieve that ? I don't think if that's the correct process of ratings.

Answer 1

First of all get total no of people vote.

and use this function to show percentage.

star percentage = star total people vote * 100 / total no of people vote.

for example if you want to get 5 star rate percentage then

5 star percentage = 300 * 100 / 554