To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Not impressed. Google is faster and better because you can look up the info you need when you need it. Otherwise you have to save 365 pieces of paper and hope you can find it the day you actually need it.