An old parable states that five birds were resting on a wire. Two decided to fly south. How many were birds are left? One's initial answer may be three, however, the answer is still five.
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 analyzes reviews to verify trustworthiness.