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.
The balloons came without instructions and it was hard to figure out how to inflate the champagne ballon which ended up breaking. The rubber band that came with the clear balloons did not keep the air inside. Balloons kept popping randomly. Also didn’t come with tape.