It's difficult to determine the top discount at Errorsmart as it varies based on different factors such as the product category, seasonal promotions, and sales. Basically, Errorsmart provides a price slash of 40% off. The top price slash available at this moment is 80% off from "Up To 80% Off + Lightning Deal".It's best to check the e-commerce website once daily or subscribe to their email newsletter for the most up-to-date promotions and discounts.