January 26, 2020
Business rating for Google is calculated by taking the average of all scores and showing that rating.
So, if you’ve got 26 ratings, you’d add up all-stars earned for all 26 studies and divide the total number of stars by 26 (the number of reviews), which would give you your Google ranking.
Example: There are 24 5-star ratings, one of which is a 2-star review, the other a 4-star review. This is 126 total Google stars. Then you split the 26 studies into 126 leads, and your average review rating is 4.8.