To calculate the overall star rating and percentage breakdown by star, we do not 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.
These scratch off stickers stick well to the collateral you're making and scratch off easily without ripping off the sticker. I work in sales and will use these for promotions and collateral. I made a fake scratch off lottery ticket and my team member thought it was real because of the sticker and the way it scratched off. Be creative and have fun with these. I know I will.