An independent web research company in the UK, 67% of online shopping carts are abandoned. In other words, 67 out of every 100 potential customers is browsing your website, looking at products, adding products to their cart, and going to the checkout page because they intend to purchase.But then they leave. Based on these numbers, a small store with $2 million in annual sales is losing more than $4 million every year to cart abandonment.