Estate sales typically last for three days over a weekend: Friday, Saturday, and Sunday. Since sellers are eager to move product, they will often discount items as the days progress. Friday is full price, Saturday is 25% off, and Sunday is 50% off. This can vary, depending on the estate sale, but since the ultimate goal is to clear a space and sell as much as possible, you can usually count on steeper discounts the longer the sale continues.
Today Apple has started selling officially refurbished versions of the iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max. Their prices are discounted by 12% to 22% compared to the company's current new pricing (for the iPhone 16 and iPhone 16 Plus, which are still offered as new), or compared to the original pricing for the iPhone 16 Pro and Pro Max, which have both been discontinued.
