What information is typically found on a sale sign?

The correct choice provides essential information that customers need to make informed purchasing decisions. Sale signs are designed to attract attention to discounted items, presenting key details such as the price before the discount and the new sale price, along with the amount saved. This helps customers understand the value of the deal they are getting, encouraging them to purchase items they might otherwise consider too expensive.

In contrast, product reviews and ratings are typically not included in sale signs, as they focus more on personal opinions rather than immediate pricing information. Expiration dates are usually found on product packaging for food safety reasons but are not typically displayed on sale signs. As for manufacturing details, they are generally not relevant in the context of a sale sign, which is intended to highlight pricing and savings rather than intricate details about the product's origins or production process.